The H.I.S. Mysteries book series follows the Homeschool Investigative Society, a group of homeschooled kids who find themselves in the middle of real mysteries. The series begins with The Secret of the Sarcophagus, in which a coded note leads the group to a decades old secret hidden inside a museum exhibit. These are clean, adventurous stories written for the whole family to enjoy together, and they are grounded in faith and family from the very first page to the last.