Tome of Madness (5E)

The definitive 5th Edition source for dealing with maniacal madmen and deranged villains, but also for haunted heroes and their afflicted allies whose minds have been pushed past the breaking point. This lavishly detailed tome examines the nature of mental maladies from aphasia and amnesia to phobias, tics, delusions, dyspraxia, and hysterical blindness.