Gretel Koch, Jewel Thief Books in Order

Jewel thief Gretel Koch is offered a chance to consult for law enforcement and avoid prison. She agrees to appear reformed, but the prospect of a perfect crime tests whether she can resist returning to her old life.

Former jewel thief Gretel Koch is working with law enforcement despite one colleague's distrust. A new assignment becomes secondary when her ex-boyfriend leaves prison seeking revenge, forcing her to protect the second chance she has begun building.

After years of international jewel thefts, Gretel Koch lands in prison because she trusted the wrong man. She plans to escape and reclaim the diamonds he stole, but armed guards, high walls, and dangerous inmates stand in her way.

Gretel Koch wants to leave jewel theft behind, but a twenty-two-carat gem heading to auction tests her resolve. The Purple Promise offers a temptation she finds difficult to ignore as she struggles to control her old habits.

Jewel thief Gretel Koch expects her next FBI assignment to be straightforward, until secrets surrounding an old diamond heist put her life in danger. An enemy's return forces Jack Fletcher to weigh his career against protecting her.