Atlee Pine is back for the third instalment of this riveting series and is still looking for her sister, Mercy. This time she teams up with military investigator John Puller, as she zeroes in on the man she suspects took her twin sister when they were children. This also gets her tangled up in an investigation of drugs on an army base, and a government conspiracy that hampers the investigators progress. 333 With sidekick and co-worker, Carol Blum, at her side, Pine her usual brand of take-no-prisoners justice to a story than weaves a tight narrative from start to finish, and also sets up book four.