Subaru has forgotten almost everything that happened since he first came to this strange new world, and he still has no idea why. The only thing he knows for sure is that if he doesn't figure out what's going on soon, he and his friends are going to die horribly in this danger-filled tower. There are hungry archbishops, a living legend, and even a giant scorpion skulking around. Worse, they still haven't made any progress with the examination. Subaru's only hope may be in the Taygeta archive, where the memories of untold millions lie within the books of the dead