For long time fans of this series Cast in Wisdom is a satisfying return to what made the early books great. Kaylin and her friends are back to investigating the problem of Ravellon, the ancient city overrun by the corrupt Shadows that simultaneously exists on all worlds. When a shadow escapes into the Fief of Candallar without triggering its protective Tower and the dragon Bellusdeo suggests they start their investigation by looking closely into the border zone between the towers. To Kaylin and the others what they find is a strange puzzle, but to the Arkon it is of great personal significance. So much so that he will risk everything, including his sanity, to solve it and if the eldest and most powerful of the Dragon Lords should lose his sanity....
Jewel Markess, Jay, is an orphan living on the streets of Averalaan when she steals from Ararath. Rath has spent his life avoiding personal relationships so he's not sure why he follows her beyond a vague sense that something is different about Jay. When she falls ill he keeps her at his apartment telling himself it's only until she recovers. It's hard to categorize Rath since he's a bit of a confidence man, thief, spy, and scholar. But when he needs money he delves into the undercity, the silent ancient city below Averalaan, that only Rath knows about. Then one night Jay warns him, as he goes to sell some pieces from the undercity, that he's meeting a man who will have him followed. Now Rath has two puzzles. Who is this man that wants to kill him and how did Jay know?
Kaylin Neya is a Hawk, the police arm of the Halls of Law in the city of Elantra. She is always oversleeping, never finds time to do her laundry, and can't be bothered to style her hair. Kaylin is brash, impatient, ignorant, and almost suicidally tactless. Kaylin is very human. She is also covered in ancient writing that gives her enormous power to heal or destroy. Kaylin is the Chosen, though no one has ever explained who chose her or why.