From the author of Edge of Betrayal—the Edge series returns with the climactic fifth novel, and an all-new explosive, romantic adventure...

In the world of covert operations, Bella Bayne knows how to get the job done. And with her work coming first, her personal life is coming in a distant second. Even though Bella would like nothing more than to ravish the rugged, handsome Victor Temple, she’s his superior so it’s a strictly hands-off affair.

When Bella gets a solid lead on the location of Dr. Norma Stynger—the twisted mind behind Project Threshold—she must team up with Victor if they are to finally bring justice to the madwoman. But when Norma’s daughter risks her life to help the team, Bella is faced with the impossible task of deciding who will live and who will die…