One Candy Stripe Lighthouse. Two Gators A’galivanting. Four Fairly Frightened Friends. Six Dancing Dolphins. Twelve Salty dogs A’barking. Like all of Carole Marsh Mysteries, The Mystery on Hilton Head Island incorporates history, geography, culture and cliffhanger chapters that will keep kids begging for more! This mystery includes SAT words, educational facts, fun and humor, built-in book club and activities.