The S.O.S. Boys Mystery Book Series are fast-paced adventure stories starring fifteen-year-old friends, Rick, Greg, and Topher. The S.O.S. Boys, along with Rick's Irish Setter, Aaron, solve mysteries in and around the San Juan Islands of Washington. The FBI and Coast Guard named them, S.O.S. Boys, because the boys use Morse code to communicate with each other while solving mysteries and to protect the boys' identities.
Rick, Greg, and Topher are lifelong friends who live in Bellingham and Orcas Island. After working many odd jobs for over two years, the boys combined their savings together to purchase a sixteen-foot boat with an outboard motor. They planned to use the boat to travel back and forth from Bellingham to Orcas Island and earn money crab fishing.
The Secret of the City of Gold: The S.O.S. Boys' friend, Thisbe Woods' parents had supposedly been killed in a landslide in Peru while on an archaeological dig to find the Lost City of Gold. However, Thisbe finds a clue that her parents may have sent her and now suspects that they may not have been killed as reported. She enlists the help of the S.O.S. Boys and their alien robot dog, Markie, and Irish setter, Aaron to help her find out what really may have happened to her parents.