In 1908, a brilliant American battleship gun designer dies in a sensational apparent suicide. The man's grief-stricken daughter turns to the legendary Van Dorn Detective Agency to clear her father's name. Van Dorn puts his chief investigator on the case, and Isaac Bell soon realizes that the clues point not to suicide but to murder.

When evidence of sabotage is uncovered, Boston Navy Yard secretary Mary Stirling and Navy officer Jim Avery work together to discover the culprit.

"Her photographs capture the beauty of Puget Sound. Do they also expose a darkness that someone would kill to keep buried? After her husband, Jack, dies in a climbing incident, Shauna has only her five-year-old son and her helicopter charter business to live for. Every day is a struggle to make ends meet and she lives in constant fear of losing even more than she already has. When her business partner is murdered, his final words convince Shauna that...