I recently got a page of “The Black Rock Ledger”. It cannot be sold and except reading its text it does not seem to have any other purpose (except wasting stash/inventory space).
Should I keep this item? Will it be usable for something later? Maybe the all-mighty Cow Level?
It’s an easter egg, referencing the TV series Lost. The page numbers 4, 8, 15, 16, 23, and 42 are also part of the Lost reference. Basically, you can throw it away if you want to, or keep it in your private collection.