Detective Cal Rylan's day couldn't have gone to hell any faster. His partner's just been shot, a witness was taken out under his watch, and he has zero leads on a dangerous sniper whose sights are set on New Haven. When Special Agent Eve Sands steps in to the picture, he's left battling an attraction to the woman that has no place in their partnership. They've got a vigilante sniper to catch before anyone else loses their life. But in the new On the Line series from NY Times Bestselling Author Lori Ryan, nothing is ever simple, and hearts and lives are on the line.