Third entry into the John-&-David-verse. Expands the idea of the unreliable narrator. Perhaps an attempt to explain how some see a savior where others see a used car salesman. I rate the ratio of cosmic to body horror as about 1:1. Has the most thorough exploration of Dave & Amy's relationship. A surprisingly fast read. Like This Book is Full of Spiders, What the Hell Did I Just Read is kind of a novelization of the card game Fluxx, with whatever MacGuffin the characters are pursuing constantly changing (usually as they are about to catch up to it), & the story ending abruptly when the author (presumably) runs out of cards to play.  Jason Pargin should definitely look into making a John Dies at the End Fluxx, especially after the next book comes out in the fall.