Been crafting some Cleric gear, and found myself running out of Old Diaries.
Figured out the best way to get more, thought I’d share (for anyone else in a similar predicament):
Take a couple of Adventurers (w/ Pickpocket & Ricochet) into Floor 22, do room 1 (5 x Fault) and room 2 (Treasure!) and then hit Replay Floor. Repeat until you’ve got a sizable stack of ’em.
Warning: Do not attempt to read the pile of Old Diaries! It’ll make you yearn for death.