The Library of Oaths is one of the Academies of Lies in Stygia. A scriptorium so large it resembles a mountain, this unholy place houses legions of infernal scholars whose task it is to record every mortal oath of damning consequence. Any mortal whose oath is recorded here and breaks it, is condemned to Hell for as long as the record remains in the library vault.123
- John Compton, Adam Daigle, Amanda Hamon Kunz et al. (2017). Book of the Damned, p. 141–142. Paizo Inc. ISBN 978-1-60125-970-7
- Sean K Reynolds. (August 25, 2009). Book of the Damned: Moloch and Stygia, Paizo Blog.
- F. Wesley Schneider. (2009). Princes of Darkness, p. 14–15. Paizo Publishing, LLC. ISBN 978-1-60125-189-3