Detailed for Irvin or Prince Christopher. A summary of the subsequent arc involving the Winter Hunt.
During a confrontation, Irvin accidentally damages a book. This triggers Elianna's "berserk button," leading her to physically strike him with a book in defense of the literature. Mushikaburi-hime Episode 7
Elianna investigates rumors of a ghost haunting the archives. She discovers that the "ghost" is actually a scholar who has been living in the hidden rooms of the library to study in peace. Detailed for Irvin or Prince Christopher