The fifth and final installment in the Electra McDonnell series brings safecracker Ellie on a mission across World War II-era Europe to Lisbon, Portugal to rescue a key group of escaped POWs.

"The fifth and final installment in the Electra McDonnell series brings safecracker Ellie on a mission across World War II-era Europe to Lisbon, Portugal, to rescue a key group of escaped POWs. [She intends] ... to save her beloved cousin Toby who has reportedly escaped from a German prisoner of war camp. Toby has been missing since the Battle of Dunkirk and Ellie had all but lost hope in ever seeing him again until Major Ramsey, the British military intelligence officer she had been working closely with over the past few months, shared the news he'd intercepted. Nothing will stop Ellie from finding her cousin, not even the awkward experience of having to travel to an unknown country with Ramsey after he'd dismissed her for being untrustworthy just as she'd realized she had fallen in love with him"--