My notes

The My notes is a book given during Barbarian Training by Otto Godblessed. It records entries from ancient pages which are sometimes obtained when rummaging barbarian skeletons or as monster drops in the Ancient Cavern.

Destroy option: I can obtain another from Otto.

Otto: "I see you have free space and no way to record any information you may recover from the caverns. Please take this book as a record of your researches - between the spirits and your diligence I expect it will always be up to date. ... Those who have previously entered the cavern have not all returned, some of them seemed intent upon research and discovery as much as loot and daring deeds.  It would be a shame if you were to recover any of their notes and be unable to record them handily.  I hope the new book will give you space of such discoveries."

My notes is in the bookcase listed as Records from my discoveries beneath the lake.

Ancient page
There are 26 ancient pages in the final order in My Notes: