Tabitha, a city girl, has to spend her summer vacation with her professor and Swampmaster father, Mable real "swamp thing" of a woman, heat and mosquitoes, but she also helps solve the mystery of why someone is trying to lay claim to Mable's homestead in the swamp. Learn The Secret of Skullcracker Swamp - Beware this means you! Each mystery incorporates history, geography, culture and cliffhanger chapters that keep kids begging for more! Each mystery includes SAT words, educational facts, fun and humor, built-in book club and activities. Each Carole Marsh Mystery also has an Accelerated Reader quiz, a Lexile Level, and a Fountas & Pinnell guided reading level.