For Alastair Stone, problems rarely come one at a time. He’s busy helping an old friend with a case of blackmail when he’s contacted about a mysterious wave of minor crimes in the Oakland area—one that might involve magic. He asks Verity to look into it. When tragedy strikes and the petty crime spree leads to a friend's disastrous near-death, Stone hurries home to investigate the situation himself. What he finds suggests terrifying new connections to a problem he thought he’d already dealt with. As the situation escalates and puts more innocent people in harm’s way, Stone, Verity, and Jason will have to rely on each other—and a growing collection of allies both old and new—to track down a dangerously unstable enemy before he snaps. And as if all of that weren’t bad enough, a powerful, shadowy figure resurfaces with an offer Stone might not be able to refuse.