Veiled Intentions by Delores Fossen

She bet her badge and her honour when she bent the rules to hunt the deadly sniper who'd declared open season on newlyweds. Now police detective Katelyn O'Malley would answer to hotshot Sergeant Joe Rico, her new boss - and temporary fiance.

Joe had a plan to draw the sniper out - by dangling his and Katelyn's very public whirlwind "marriage" as bait. But in private, the line between pretense and passion blurred. And as duty and desire tangled them in a web of escalating danger, they raced to discover if the killer had spun the deadliest trap of all...