((Got this idea from a movie called Annihilation I recommend watching it))

the mutant bear eats tne rest of your crew and your the last one and now your all alone to fed for yourself in the Shimmerbut one thing is the mutant bear can mimic your dead friends your friends names were Morten, Stevenson and your brother William after they were killed so are you going to keep your sanity and fell for it or not. But you meet a girl name lena and her team Josie, Anya, and they did survived the bear and killed it but theres more and the one you ran from was 5 times bigger so they killed when it was in its first stage of its evolution

Anya:W-What do you mean you saw another one?! We killed it!!

lena:we did killed it so you must be delusional! It's no longer alive!

Cassies cries for help from the mutant bear from a distance and it fooled the girls but not you

Josie:wait... those cries she's Alive! She was excited

Anya and lena:she's... alive! SHES ALIVE!