The Secret of Fern Island (Shivers, No. 12)

Every day, Kenny's parents tell him to stay away from the causeway bridge and the island beyond. And every day, Kenny and his friends dream of crossing the causeway. They finally decide to go for it! That simple act of crossing a bridge sets in motion a horrible waking nightmare. Fear turns to horror as they search for a vanishing little boy. Curiosity becomes terror when they explore an old lighthouse and find the key to the mystery of the boy--- and the reason they were told to stay away from the island.