I got careless, focusing too much on the mountain in the distance, when I tripped on the vine and fell onto my hands and knees.
Then the viper hissed.
The only movement I made was to breathe and to pump blood through my body, as my eyes stayed locked on the creature as it shifted before me. Then it lunged.
All its venom got was my rucksack, before I yanked it back and ran.
I guess vipers can track their venom, how else would the same viper find me down this ravine, with broken legs? Unless it got very lucky…