Misc ItemsTier 0Wearer: All Characters
Secret Book of Unknown Source
A secret book of unknown source.
Data updated May 24, 2026
How to Obtain
Locations
World Drop Known Map Locations
1 locationRelated Misc Items
A Butler's Note Wearer: All Characters A butler's last written message. A Hunter's Letter Wearer: All Characters A letter left behind by a hunter. 
A Man's Note Wearer: All Characters A note found at the Coalvale Workshop. 
A man's plea Wearer: All Characters Misc Items · Misc Items · Tier 0 A Map Left at the Torchlight Beacon Wearer: All Characters A map left by the thief who stole the seal of House Serkis. 
A Wife's Letter Wearer: All Characters A letter sent by a wife to her husband, who is far away. It is filled with her worry for him. 
Abyss Artifact Fabricator Wearer: All Characters An Abyss Artifact Fabricator. 
Abyss Transporter Wearer: All Characters A device for traversing space, and a component that constitutes the Abyss Nexuses.