The forest at night was a different world with darkness everywhere. The canopy blocked most moonlight and what little reached the ground came in thin shafts that moved when branches swayed.

  The spider clung to her right shoulder and its four eyes provided the only real light, a soft white glow that illuminated maybe three meters in any direction while everything beyond that was pure black.

  She needed water desperately. Her throat felt like someone had filled it with sand and each swallow hurt. Her stomach had stopped cramping an hour ago, which was worse, much worse, because it meant her body was shutting down, conserving energy, and preparing to die.

  Find water now, or collapse.

  Her enhanced brain kicked in without conscious thought and processed everything her eyes touched. The ground sloped left maybe four or five degrees, the moss grew thicker in that direction with darker green and healthier growth, and the ferns there were larger too with broader leaves.

  Plants grow where water is. Water flows downhill. Always downhill. That direction.

  She started walking and her eyes wouldn't stop scanning. A vine hanging from a branch had purple thorns along its length, unknown species.

  Don't touch that. Could be toxic. Could kill with a scratch.

  An insect on tree bark had six legs instead of four or eight with mandibles that looked sharp enough to puncture skin and red markings on black shell.

  Don't know what that is. Assume dangerous.

  Mushrooms growing at the base of a tree glowed faint blue, bioluminescent and beautiful.

  Also probably deadly.

  Her vision was sharper than it had been before, Level 2 had done something. She could see details she would have completely missed a day ago: the exact pattern of moss growth, the way certain ferns bent slightly toward moisture, small animal tracks in patches of soft earth that were rodent-sized, recent, and within the last few hours.

  Everything fed into her brain and processed faster than she could consciously think about it, categorized as threat or not threat, useful or ignore.

  The slope got steeper and her feet were finding the easiest paths automatically now as her brain handled thousands of tiny calculations she didn't even notice, where to step to avoid wasting energy, how to distribute her weight, which route between the trees required the least effort.

  A fallen log blocked her path and her eyes measured it without thinking, maybe forty centimeters high, stable, bark intact, not rotting.

  Stepping on it saves energy. Point-nine seconds faster than going around.

  She stepped onto it, pushed off, and kept moving, the decision had happened faster than conscious thought.

  Then she heard it.

  Water, running water, faint but unmistakable.

  Her heart jumped as hope surged so hard it almost hurt.

  Finally. Please let it be clean. Please.

  She pushed through a thick cluster of ferns and the spider's light showed her what lay beyond, a stream, small, maybe two meters wide with water flowing over smooth stones, clear, moving, not stagnant.

  Found it. I found it.

  But there was something else.

  An animal stood on the far bank drinking, large, very large, with four legs, broad shoulders, and heavily muscled. The body structure was feline.

  The fur was orange, bright orange even in the dim light from the spider's eyes, with black stripes running vertically down its flanks and back and across its face.

  A tiger. Or close enough that the difference didn't matter.

  But there was something on its back, a saddle made of leather, old and well-worn with straps that went under its belly and around its chest and stirrups hanging on both sides.

  Someone was riding this thing. Using it as a mount.

  Her eyes tracked down to the tiger's neck automatically and saw dark stains on the orange fur, wet, still glistening in the light. Blood, fresh blood.

  But the tiger wasn't wounded, she could see that clearly. The blood was on its neck, not coming from the tiger itself.

  The rider. Someone killed or injured the rider. Recently. Within hours. The saddle's still on.

  The tiger stopped drinking and its head lifted slowly.

  She froze and didn't move or breathe.

  The tiger's nostrils flared, testing the air.

  Oh no. My smell. That horrible smell.

  The tiger's head turned, deliberate and unhurried, as yellow eyes locked onto her position.

  It detected me.

  Her enhanced brain went into overdrive and suddenly she was seeing options, probabilities and consequences branching out like a tree.

  Run? No. It's faster. So much faster. Eight seconds before it catches me. Then claws and teeth and death.

  Climb? No. Tigers can climb. Those claws are built for gripping. It follows me up. Corners me. Kills me on a branch.

  Stay still? Already saw me. Already smelled me. Staying still is just waiting to die.

  That leaves fighting. Fighting a 250-kilogram apex predator. Fantastic. Absolutely fantastic.

  But she had tools, the spider, the nano thread, and a brain that could calculate faster than most people could blink.

  It'll have to be enough.

  The tiger started moving around the stream toward her side, slow and confident, the way a predator moved when it knew the prey had nowhere to go.

  Distance maybe twelve meters and closing steadily.

  She unwrapped the nano thread from her wrist carefully. Her hands were shaking. She forced them steady. Most of the thread coiled around her fingers, with about two feet stretched taut between her palms. Nearly invisible, just a faint shimmer in the spider's light.

  "Spider," she whispered. Her voice shook. "When it charges, go for the eyes. Blind it if you can."

  The spider's eyes glowed acknowledgment and she felt it shift position on her shoulder, preparing to launch.

  Ten meters now, then nine, then eight.

  She positioned her feet shoulder-width apart, knees slightly bent, weight centered.

  Optimal stance. The angles. The timing windows.

  The tiger stopped five meters away, crouched low with muscles coiling, preparing to spring.

  She gripped the thread tighter, keeping two feet taut between her hands with the rest coiled around her fingers.

  Wait. Wait for it. Time it right or I'm dead.

  The tiger launched.

  Everything happened fast.

  The tiger was massive in motion, 250 kilograms of muscle and momentum coming straight at her with jaws wide. She could see every tooth and four claws extended on each paw like knives.

  Oh god.

  The spider shot from her shoulder and intercepted the tiger's face mid-leap with all eight blades extended, slashing and cutting.

  Blood appeared instantly as the spider's blades cut the tiger's ear and sliced through the thinner tissue. The ear partially severed and blood sprayed.

  The cuts were shallow everywhere else because the tiger's hide was thick and built to resist, but the face had thinner skin and the spider was exploiting that by going for the most vulnerable targets.

  The tiger's head jerked sideways from the pain.

  But the momentum didn't stop.

  Too fast. Can't react. Too much mass.

  This book was originally published on Royal Road. Check it out there for the real experience.

  She tried to sidestep, move left, get out of the path.

  Too late.

  Starving body. Can't move fast enough.

  The tiger's right shoulder hit her, not a direct impact but glancing, though at that speed even a glancing blow was devastating.

  She flew backward two full meters as her feet left the ground and time seemed to stretch.

  No no no.

  Then she hit.

  Her back slammed into the ground hard as all the air exploded from her lungs in one violent gasp and pain shot up her spine.

  Stars exploded in her vision.

  Can't breathe. Can't... the thread. Where's the thread.

  The nano thread was still in her hands, both ends gripped tight by survival instinct. She'd held on.

  Still have it. Still gripped tight.

  The tiger landed four meters from where she'd been standing, spun around, reoriented in half a second.

  She was on her back, vulnerable and unable to breathe as her diaphragm spasmed, trying to remember how to work.

  Get up. Have to get up. It's coming.

  The tiger charged again.

  Three meters away, then two.

  Move. MOVE.

  She rolled left, desperate, and barely got out of the way.

  The tiger's claws raked the ground where her head had been, tore through moss and dirt, left four parallel gouges.

  Inches. That was inches from my face.

  She scrambled to hands and knees but still couldn't breathe properly, gasping as each attempt at air was agony. Her palms scraped against rough stone hidden beneath the moss, skin tore, and blood welled up immediately.

  The tiger turned faster than something that large had any right to move.

  Too fast. Everything's too fast.

  A paw swiped at her and she saw it coming, tried to duck.

  Not fast enough.

  Claws caught her chest and raked across the fabric of her shirt. The cloth tore but the claws didn't reach skin because the tiger had pulled back slightly, confused by the spider's continued harassment of its face.

  The impact still knocked her backward and she hit the ground again in a different spot. This time her left shoulder took most of it, more pain. Her hand slammed into a protruding root, more skin split, more blood.

  Everything hurts. Can't... the thread. Still have the thread.

  The thread was still in her hands, still gripped tight with both ends wrapped around her fingers multiple times. She hadn't let go and wouldn't let go.

  The tiger approached slowly, with yellow eyes focused on her with absolute attention as blood dripped from its partially severed ear.

  Seconds. I have seconds. Not many. But some.

  The spider landed on her chest between her and the approaching tiger, small and defiant.

  "Keep attacking," she gasped. "Don't stop."

  The spider launched again and went straight for the tiger's face, cut its nose shallow but blood welled immediately and ran from the wound down into the tiger's mouth.

  The tiger shook its head, annoyed, swiped at the spider with one massive paw.

  Missed, the spider was too fast and too small a target.

  Distracted. It's focused on the spider. Use it.

  She rolled onto her side and pushed with her hands against the ground, got one knee under her then the other, and forced herself up.

  Standing, barely

  Legs shaking. Back screaming. Every breath agony. Cracked ribs. Maybe more than one.

  The tiger stopped trying to catch the spider, turned back to her, and started circling, patient and analyzing her.

  Blood dripped from its torn ear, from its nose, from multiple shallow cuts across its face, minor wounds, nothing that actually threatened it.

  Need position. Need advantage. The tree. Get to the tree.

  She backed toward a large tree three meters behind her with a thick trunk maybe a meter in diameter.

  Limit the angles. Make it come from one direction.

  If she positioned herself at the tree the tiger could only attack from the front, couldn't flank or use its superior speed to circle and strike from behind.

  The tiger followed, watching, analyzing her movements the same way she was analyzing it.

  The spider harassed it constantly, cut the tiger's other ear with another shallow wound and more blood.

  Blood was getting in the tiger's eyes now, not a lot but enough to irritate and make it angrier.

  The tiger snarled then charged, direct and fully committed now.

  Here it comes.

  She was at the tree now with her back pressed against the trunk, nowhere to retreat.

  She raised the nano thread with both hands, positioned it horizontally.

  Running tiger. Head forward. Approximately ninety centimeters from the ground at full sprint. Throat height.

  She held the thread at that height, taut, hands sixty centimeters apart..

  Wait. Wait. Time it right.

  The tiger closed distance, four meters, three, two.

  She held her position. Didn't move. Didn't flinch.

  The tiger's head was lower than she'd calculated.

  No. Lower. It's lower. Running posture. Head forward and down.

  The thread caught the tiger's lower jaw instead of its throat.

  The nano thread activated instantly and cut through tissue like it wasn't there, the thread sliced three centimeters deep into the jaw before the tiger's forward momentum carried it past the cutting line.

  The severed tissue separated cleanly as the tiger's head jerked from sudden trauma, blood spraying from the partial wound.

  Wrong angle. Didn't get the throat.

  Then the full weight crashed into her.

  The impact drove her back into the tree trunk and all the air left her lungs. Her back hit wood hard as the tiger's mass pressed her flat against the bark, couldn't breathe, couldn't move, couldn't do anything.

  No air. Can't breathe. Can't move. Crushed.

  The tiger's jaws opened with half its lower mandible hanging at an unnatural angle, tissue severed, blood pouring from the wound in a steady stream.

  But it could still bite. Upper jaw was intact. Teeth like daggers.

  The jaws came down toward her shoulder.

  This is it. I'm dead. After everything, killed by an animal.

  "Spider!" she screamed. "Now!"

  The spider was already moving.

  On the tiger's head with all eight blades working simultaneously, stabbing, cutting, focused attack.

  Went for the left eye.

  Blades sank deep, punctured the eyeball, and destroyed it completely.

  The tiger screamed.

  A sound like agony, rage, terror.

  It reared back. Got off her.

  Move. Get away. Now.

  She collapsed, slid down the tree trunk, and landed in a heap gasping, everything hurt, everything.

  Alive. Still alive. How am I still alive.

  The thread was still in her hands, still wrapped around her fingers, still gripped tight.

  The tiger thrashed with one eye completely destroyed, half its jaw severed and hanging by threads of tissue, blood everywhere.

  But still alive. Still dangerous.

  Not done. It's not done. Get up. Have to get up.

  She forced herself up though her legs barely responded after being crushed against the tree, and every breath was agony.

  The tiger was half-blind now, disoriented and in pain.

  It turned toward her with one yellow eye filled with rage.

  Charged one final time.

  Final charge. One more. End this.

  Coming straight at her at full speed in one final attempt to kill.

  Her brain calculated seconds before impact, maybe less.

  Two trees. Close together. To the left. Run. NOW.

  She saw them, two trees close together, two meters apart, to her left.

  Ran sideways toward them.

  The tiger adjusted, changed angle, followed her trajectory.

  Four seconds.

  She reached the trees, threw herself between them, turned.

  The tiger was right there and closing fast.

  Two seconds.

  She pulled the nano thread from her hands, both ends, and held it out to the spider on her shoulder.

  "Between the trees! Now!"

  The spider grabbed the entire thread, shot to the left tree, and wrapped one end around the trunk, too fast for her eyes.

  Raced to the right tree, pulled the thread with it, stretched it taut between the trunks.

  Wrapped the second end and secured it.

  Horizontal line eighty centimeters high and invisible.

  Please work.

  The thread went taut as the tiger passed between the two trees and hit the thread at full speed.

  Throat-first.

  The nano thread activated the instant it made contact and cut through fur, skin, muscle, the windpipe, and major blood vessels.

  Deep and nearly complete as the thermal cutting sealed tissue while it passed through.

  The tiger's forward momentum carried it three meters past the trees before the severed throat gave way completely.

  It crashed to the ground and fell hard, couldn't get up with its massive throat wound and blood pouring out in pulses, fatal, absolutely fatal

  But not instant.

  It's dying. But not dead yet.

  It tried to stand with legs scrambling, choking on its own blood, unable to breathe.

  The spider approached, climbed onto the tiger's neck from behind.

  Started cutting where the spine met the skull over and over with shallow cuts, persistent.

  The tiger's movements slowed from blood loss and oxygen deprivation, dying.

  The thread was still between the trees, anchored, so she couldn't use it.

  "Spider. I need the thread back."

  The spider moved immediately, climbed the left tree, and cut the thread free from the anchor point with its blades, then raced to the right tree and cut it free there too.

  Brought both ends back to her and dropped them in her hands.

  She looked at the thread in the spider's light and the material looked different now, slightly frayed at the edges with the molecular structure degrading from repeated thermal activation.

  Used it too many times. Won't last much longer.

  She walked forward and each step was agony, something was definitely broken inside her, ribs, maybe worse.

  Finish it. End this.

  Approached the tiger from behind.

  It was still alive with one yellow eye tracking her, fading but still aware.

  She positioned the nano thread around its neck where the spider had been cutting.

  Pulled with what little strength she had left using both hands, and the pain in her torn, bleeding palms was incredible but she ignored it.

  The thread cut deeper, through more tissue, down to the spine.

  She adjusted the angle carefully, found the gap between vertebrae.

  Pulled again.

  The thread found the spinal cord and cut through it.

  The tiger went still.

  Dead.

  Her HUD updated.

  [ACHIEVEMENT: DEFEATED APEX PREDATOR IN SOLO COMBAT]

  [ACHIEVEMENT: TACTICAL COMBAT UNDER SEVERE PHYSICAL LIMITATION]

  [EVOLUTION PROGRESS: +60%]

  [TOTAL: 70%]

  She ignored the message.

  Just the sound of running water, her ragged breathing, and the spider's quiet mechanical movements.

  She dropped to her knees.

  Can't stand anymore. Can't do anything.

  The thread was still in her hands and still gripped tight.

  She was shaking with her whole body trembling, couldn't stop and wouldn't stop.

  Almost died. So many times. Almost.

  The spider climbed onto her lap, covered in blood, the tiger's blood, but completely undamaged, still functional and still ready.

  "Good," she whispered. Her voice was barely there. "Good job."

  Survived. Barely. By the thinnest margin possible. But I survived.

  She forced herself to move, crawled to the stream, fell forward, put her face in the water.

  Water. Cold. Clean. Life itself.

  Drank desperate and gulping, like she could drink the entire stream.

  She drank until her stomach hurt, pulled her head up, gasped for air.

  Washed the blood from her hands and the water stung the torn skin where she'd scraped against stone and roots, but she didn't care, needed it clean.

  Looked at the tiger, the saddle, and bags attached to it.

  Supplies. Check for supplies.

  Crawled over and everything hurt,every single movement, but she moved anyway.

  Unbuckled the bags with shaking, bleeding hands.

  First bag: dried meat wrapped in cloth, maybe two kilograms.

  Second bag: a water skin half full and a steel knife that was well-made.

  Third bag: rope, twenty meters of it, and a thick cloak that was waterproof.

  Real supplies. Actual equipment.

  She sat back with everything spread before her.

  Then heard it.

  Voices.

  Distant but getting closer.

  No. Please. No.

  Her heart sank.

  The fight was loud. The tiger's screams. My shouts. Someone heard.

  The voices were getting louder, multiple people moving fast, maybe five minutes away.

  Can't fight. My body hurts. But can't stay here either.

  Her body wanted to quit, wanted to collapse right there and never move again.

  But survival instinct kicked in with new adrenaline, pure and primal.

  She grabbed the saddlebags and threw them over her shoulder as pain exploded through her back where she'd been crushed, but she ignored it.

  Grabbed the cloak, wrapped it around herself quickly.

  "Spider. We have to go. Now."

  Started moving.

  Not running, couldn't run, just fast walk, stumbling, each step agony.

  One step. Then another. Keep moving. Don't stop.

  Into the forest, away from the voices, away from the stream, away from the dead tiger."

  Her body was screaming, begging her to stop, to rest, to collapse.

  But she forced it, one step then another, keep moving, don't stop.