The seventh book of the Vlad Taltos series. The book was published in 1996 by Ace Books, and is told mostly from Kiera's point of view, with Vlad reporting his actions to her. The main story is framed by letters from Kiera to Cawti, and contains interludes depicting Kiera relating the main story to Cawti afterwards, with certain details being edited or elided.
Athyra and Orca are in print as "The Book of Athyra".