Devil's Breath Volcano

The MacGregor siblings dive into the South Pacific’s underwater world to solve a deadly environmental mystery—from the author of Sign of the Dragon . When marine biologist Dr. Randy Heath contacts his old friend Jack MacGregor to investigate dangerous pollution in a pearl bed, the adventurous MacGregor family travels to the South Pacific to solve the mystery. With his younger siblings, Heather and R. O., and his girlfriend, Natalie, eighteen-year-old Chris MacGregor discovers a dangerous link be