The line between enemy and ally is thinner than a shadow's edge.

Ever since she saved the spirit guardians of China by selling out to her worst enemy, Missy Masters -- a.k.a. the pulp hero Mr. Mystic -- has been laying low. But when knights serving the Conclave of Shadow steal secret technology from a museum exhibit on the Argent Aces, everyone looks to Mr. Mystic for help. If Missy doesn't want her masquerade blown, she'd better track down the thieves, and fast.
But stolen tech turns out to be the least of her problems. Recent events have upset the balance of power in the Shadow Realms, removing the barriers that once held the ravenous Voidlands in check. Their spread threatens destruction in the mortal realm as well... and only the Conclave stands ready to push them back.
In a world of shadow, telling friends from enemies is easier said than done. But if she wants to save San Francisco, Missy will have to decide who to trust. Including her own instincts, which tell her that something is stalking her with murder in mind...
File Under Fantasy Alcatraz Revisited - Blood-Dimmed Tide - The Lurking Tiger - Out of the Bottle ]"