Locked Away (The Lock and Key Society #1)
Lori Matthews

Rushton Fletcher, one of the Society's elite enforcement team, faces the grim reality of enforcing the Society's darker edicts and meting out punishments. Tasked with handling a new member who has broken the rules, he arrives on the island only to encounter the sexy and beguiling Kat. Despite evidence suggesting her guilt, Rush finds himself drawn to her, unable to believe she could be the killer he seeks.
As Kat races against time to rescue her brother, she finds herself walking a treacherously thin line between bending the Society's rules and succumbing to her growing feelings for Rush. Preserving the Society's well-guarded secrets may force Rush to make an unthinkable choice – to eliminate Kat. The stakes soar as they engage in a dangerous game of cat and mouse, with the coveted bounty and their lives hanging in the balance.