Cloudburst: A Jack Courtney Adventure (Jack Courtney Adventures)

Jack and his friends Amelia and Xander are in Zanzibar diving for lost treasure to support Jack's mother's coral protection project. Going further than usual on their last day, their dive boat is lured into a trap and captured by Somali pirates. Determined that his mother shouldn't pay a ransom for their release, Jack won't give up his attempts to escape.