- 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 1 Heart 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||1|
| 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