Queen's Domain books: the six-book vault, the four god books and the Record of Sin cage

Slot the books in that order and the cage opens to a lance. The guide warns that Upim's Fairy Tales has tough enemies when you first reach it, and that if you overshoot the ledges after the drop you need a crystal or stone fragment to try again. One player who solved this puzzle says the challenge didn't complete, which is explained in the last section.

The Tower's two-book doors

The god and avatar names come from the guide, which credits them to each book's text. A different player in the threads independently confirms the Wodaso spot. The Green Goddess reply in the threads is from the guide's own author, so it isn't a second source; it also puts the book by an Occultist, where the guide says the second Josami Warden. We haven't checked the Monarch of the Void route against a second source.

Each bookcase in the Record of Sin room has a god's symbol above it, and each takes that god's book. One player gives the key: circles for Sipeha, the eight-pointed star for Puwema, the cross for Wodaso and three diamonds for Jigeki.

The question asked most often is why the cage lowers and stays empty. Four threads give the same answer: the reward only appears once you have beaten the Record of Sin boss on the top floor. The cage is not a lift. The central column holds lifts between floors, but you have to find their doors, and one player missed that there are more than three floors. One player warns that beating the boss changes the zone and that the damage afterwards is brutal. Another says more items appear around the area once the boss is down.

Bosses in play order

1. Match each god book to the shelf with that god's symbol.
2. Cage empty? Find the lift doors in the central column and climb to the boss on the top floor.
3. After the boss, go back down to the cage for the reward.

The official achievement says to return all of the lost books. A player who finished the six-book vault found it didn't unlock. Two replies say it also needs the four-book Record of Sin puzzle, and one got it after finishing the second puzzle. One player counts 14 books in total: six for the vault, four for the Record of Sin and four more for the other Tower slots. They think the challenge only checks that each puzzle has been done once, not that every book is shelved at the same time.