Jimmie Dale and the Phantom Clue - Frank Packard

Jimmie Dale was the most brilliant of all thieves, a member of society by day, at night a celebrated cat burglar, "The Grey Seal." But he was only a pawn in the hands of the "Tocsin," the mysterious, unseen woman who forced him to steal--for good! With both the police and the underworld baying at his heels, Jimmie Dale uses his criminal talents to right wrongs, save lives and reputations, and expose wrongdoers to the light of day. How could Jimmie help but fall in love with the Tocsin--and how could he know that when he finally found her, he'd be placing her life in the gravest danger and that their adventures would only be beginning!