A modern-day mage and consultant to the police finds his stale life suddenly enlivened by the presence of a rival in the black arts.

Mab has just traded Harry's skills to pay off one of her debts. And now he must help a group of supernatural villains, led by one of Harry's most dreaded and despised enemies, Nicodemus Archleone, to break into the highest-security vault in town so that they can then access the highest-security vault in the Nevernever. It's a smash-and-grab job to recover the literal Holy Grail from the vaults of the greatest treasure hoard in the supernatural world,...

"Harry has faced terrible odds before. He has a long history of fighting enemies above his weight class. The Red Court of Vampires. The fallen angels of the Order of Blackened Denarius. The Outsiders. But this time, it's different. A being more powerful and dangerous on an order of magnitude beyond what the world has seen in a millennia is coming. And she's bringing an army. The Last Titan has declared war on the city of Chicago, and has come to subjugate...