| Category | Tomes |
| Type | book |
| Author | Flay |
| Location | varies |
Flay's Psychosis is a book on psychology.
Despite Flay's madness, Flay's Psychosis is one of the most pivotal works on the subject of psychology. Among the concepts discussed in this book is Emotion Resurgence . This refers to a phenomenon where a sentient undead being regains the emotions they had lost when they surrendered life energy and embraced negative energy upon becoming undead. This can result in insanity, including a desire to end their own existence, or in extreme cases, the beginnings of redemption.