Library is a Spire upgrade in Tyranny.
Constructing a Library on a Spire allows you to research magical knowledge, Edicts, and Artifacts. Once built, resting in any Spire grants a bonus to Lore and all Magic skills. It's a good idea to construct the library first, as it will allow the most time to conduct research and will greatly increase the functionality of your other upgrades once you acquire them.
- Sage Garus arrives at your library to manage your efforts, and provides a convenient interface for researching items. Research proceeds as your party gains experience and requires scrolls and Spire recruits to begin.
- Research is conducted as time passes, started when you pass experience. To maximize the library's output, travel back to it and check on Garus every time you complete a quest or location.
- Researching artifacts requires at least 8 scrolls and four recruits at the library.
- Researching items requires 2 and 2 recruits. Further research increases the cost by 1 each.
- Researching weapon plans requires 10 , the appropriate plan book, and 5 recruits.
- Researching drug recipes requires 3 , the recipe, and 3 recruits.
- Researching sigils requires 6 , the appropriate recipe, and 3 recruits.