Not Heaven, but Hell

In the middle of the war, 1916, during both the battle of Verdun, in a cold and snowy December, you're driven out of the trenches as you slowly start to go insane from the cry's of a wounded horse. You resolve to go kill the horse, and spare him and you of suffering. When the horse dies, you don't find peace, but an endless nightmare. Face the nightmare head on? Sneak around to escape? Find a clever and convoluted plan to vanquish the nightmare? Die? Save the nightmare? Choice is yours!!! *The anachronisms are on purpose, btw.* **You know Ad Infinitum and Amnesia: The Bunker? Well yeah, it's... lightly inspired after them... and a bit of Bloodborne too... One Reborn actually makes me sick when I see him.** ***Ay! Second horror entry. Fair warning; I don't read horror (I just don't like it) so I'll probably suck a writing horror. I'm open to criticism.***