Sentinel

The Sentinel is a boss creature that appears in The Evil Within. Encountered in the game's sixth chapter, this beast was an ordinary wolf before being subjected to horrific experiments in the laboratory beneath Cedar Hill Church. Following its mutation, the creature was fed the remains of the Cedar Hill cult's sacrifices to dispose of the evidence of their experiments.

Appearance
The Sentinel was originally a normal wolf before being experimented on by the church cultists. Its mutation has resulted in the appearance of multiple sores across its body and missing patches of fur. The flesh of its neck has expanded and split open into a large, gruesome maw filled with numerous fangs while its original head, though still present, no longer functions. A large, bulbous eye is also positioned on the left side of its head and there are multiple strands of barbed wire wrapped around its body, held in place by metal spikes stabbed through its back.

Combat
The Sentinel is encountered and must be fought at least once at the end of Chapter 6. Initially sleeping in a metal cage, the beast is roused from its nap by the sound of a metal door closing back down, and bursts from its bonds through a breakable wall and out into the nearby courtyard where it must be fought. After a brief game of cat and mouse, Sebastian Castellanos deals an incapacitating shot to the creature, and hurriedly squeeze past the church gates with Joseph to move on.

However, despite having fought off the creature, Sebastian still has a problem on his hands, as Joseph Oda, having dropped his glasses in the scuffle, cannot see anything at all. Left with no other choice, Sebastian decided to head back into the yard and retrieve the spectacles.

The Sentinel can be killed at this point, but it is optional. If Sebastian goes straight for Joseph's glasses and back out, the yard cannot be re-entered a second time.