From the author of "" comes a new thriller so hot it's nuclear. When CIA agent Bruce Tucker loses his family to terrorists, he vows to leave the CIA forever. But he doesn't count on accidentally learning an important secret code known as the Ultimate Encryption, capable of launching enough nuclear missiles to blow the world's superpowers off the map.

Firewall 2003, Tor Books, New York, NY

ISBN-13: 9780765340153

Mass-market paperback

Firewall 2002, Forge, New York, NY

ISBN-13: 9780765300607