Instruct: Classify a review as either positive or negative.
Query: More indepth information some overlap

This book is great for a storyteller who wants to improve their knowledge about caerns. It provides ideas for developing different types of caerns not listed in the main books as well as adds to totems. THe book goes into more depth about positions in the caern and how probable it would be for a player character to take up one of the positions and what this might mean for your chronicle. There is still a lot of information that seems to overlap from other books in 2nd ed but which might have been removed in those same books in 3rd.