- Not to be confused with the Legendary Tome: Oculus Opus.
|“||Accumulates experience as you do. When fully charged it produces 15 Eyes of Q'bthulhu. Obtained at the Shadowy Market in Shadow Arenas.||”|
— Item Tooltip
The Eye Encyclopedia is a Tome bought in the Shadowy Market for 15 Hearts of Darkness. When the Tome fully charges, it will grant the player 15 Eye of Q'bthulhu. Unlike Legendary Tomes (that can only be used once a week), these tomes can be used as often as you like without any cooldowns, however, they do not provide as many rewards as the Legendary Tomes per individual use.
||Heart of Darkness||15|
| Shapestone Survey | Formicite Formula | Infinium Miner's Almanac|
Mycological Manual | Cybernetics Catalogue | Glim Grimoire
Flux Folio | Eye Encyclopedia | Tentacle Tract
Rich Fertilizer Factuary
| Pyrotechnics Papers | Oculus Opus | Ropey Readings|
Dragon Coin Digest | Chaos Codex | Writings of Wonder
Mastery Pinata Manuscript | Insta-Grower Informational