The Happy Hollisters and the Sea Turtle Mystery (The Happy Hollisters, No. 26)

One day Peter and Pam Hollister rescued at Seminole Indian named Charlie Tiger Tail from drowning in Pine Lake. But they never dreamed that their heroic act would lead to a new, exciting mystery and a vacation in Florida. Within a few days, all the Hollisters were enjoying the beach at Turtle Point in the Everglades. And they were eager to help Charlie catch a gang of thieves who were illegally killing giant sea turtles and stealing their eggs! After Holly found a poacher's spear, Ricky and Pete patrolled the beach one night and almost trapped the poachers. With Charlie's ten-year-old daughter, Clementine, the children rowed to mysterious Captive Island to investigate the eerie sounds coming from there each night. They inspected a great Mississippi riverboat that had been towed up on land and turned into a huge mansion. And they visited Clementine's grandmother in a Seminole village where the boys learned how to pole a real dugout canoe. There were many more thrilling adventures -- including Ricky's capture by the thieves -- before the Hollisters finally traced the poachers to their hideout and solved the sea turtle mystery.