The Crooked Letter is both the first in a new series and the first in the continuation of a well loved series (to those of us who have loved it), The Books of the Change. The journey into the underworld of twins Seth and Hadrian does more than press the boundaries of contemporary fantasy fiction. It also puts pressure, in the most compelling and page-turning way, on the things our culture values most closely: the concept of the freely determined self, the idea of 'natural justice', and most importantly, the line between body and spirit. Forming a segue between the Books of the Change and the Books of the Cataclysm, this is some of the most intelligent and gripping fantasy writing available. Start at the beginning, and don't stop.