Danny and Ron Orlis in the Sacred Cave

Danny and Ron Orlis drive to Zongolica, Mexico, to deliver a station wagon to the mission station where Kay's mother and Aunt Mabel serve as missionaries. Once there, they find themselves searching in the jungle for a lost ancient sacred cave. Dangers assault them from snakes, thieves, the swamp, and.... What does the future hold for their new friends Newton and Miguel? How will they survive? How will God protect them?