#1 New York Times bestselling author Grant Blackwood introduces Briggs Tanner in a trilogy that Clive Cussler raves is "Pure fun, pure adventure."
Covert agent Briggs Tanner doesn't like coincidences. In his business, they always mean trouble. So when a man is professionally assassinated right in front of him, Tanner wants answers.
Who pulled the trigger and why? And what is the mystery behind the key the man clutched...