Lord Lambeth is uncharacteristically captivated by Marianne Cotterwood, even though she's off-limits and keeping secrets. Determined to unravel her mystery, he keeps close watch.

Alone in the world, Marianne wishes she could remember her life before the orphanage. The only "family" she has is a warmly eccentric bunch of pickpockets and thieves. Marianne's inborn grace makes her a natural at mingling among the wealthy while looking for valuables, but then Lord Lambeth catches her in the act....

Yet someone else is interested in Marianne's secrets, as well. A dangerous shadow from her past is closing in, and Lord Lambeth is the only man she can turn to.