Concept: “Relics of a forgotten mind-cult”
Content: More powerful than scrolls and more fragile
Writing: Esoteric titles on par with the core book’s Powers; mechanics and effects are easy to understand
Art/design: Entries are visually stylized as tablets with pink titles pop against the yellow ground; illustration reinforces the tablets’ grim power
Usability: Intended for use with the Forlorn Philosopher but could be used by other classes

Concept: “When getting better, if not using an optional class, you may instead gain a feat.”
Content: Abilities that add versatility for classless characters (and more motivation to play them)
Writing: The descriptions incentivize adoption as much as the mechanics
Art/design: More conservative graphic design than the core book but with plenty of gore and rottenness in the illustrations
Usability: Clearly and linearly laid out