This chapter contains a complete walkthrough for The Ascension, one of the levels that is a part of Chapter 4 of Outlast II. Inside, you'll find additional tips that will help you complete the mission in a timely fashion. The walkthrough also marks the locations of occurrences and notes found in the course of the level, as well as the locations of batteries and bandages which will prove to be very useful during your journey.
You'll wake up in a tank filled with blood. Climb out of it and make your way forward. You should see a building on your right side - use the door to enter it, but avoid getting into the center of the room. Stay close to the right wall to make a few steps forward to find a new note (Knoth's Gospel Ch. 13 #4).
Once you've read the note, return to the area which can be seen on the screenshot above. Begin to crawl underneath the shelf  - a hostile heretic will descend down the stairs . Back up and make your way to the door which you've used to get inside the building. Unfortunately, the door is now locked, while you'll be pursued by a group of heretics. Your job is to climb the stairs and escape the area without being killed.
Climb to the upper floor and proceed forward. The enemies found on the first floor will suddenly appear in the vicinity in order to cut off your escape route. Once you've climbed to the second floor, stick to the wall on the right, as you'll find a narrow passageway that will lead you further.
You are safe for now. Proceed using the only available means to begin the pursuit anew. Run straight ahead - you'll have to jump through a few obstacles. Finally, Blake will cast down some planks to cut off the way for his pursuers.
Approach the wardrobe shown on the screenshot and get it out of the way. Proceed through the corridor and jump through the window to complete the level.