Goosebumps. bk. 22, Ghost beach

Anticipating the fun of exploring a cave he finds down by the beach, Jerry dismisses the story the other kids tell him of the spooky three-hundred-year-old ghost that lives in the cave and comes out when the moon is full. Jerry can't wait to explore the dark, spooky old cave he found down by the beach. Then the other kids tell him a story. A story about a ghost who is three hundred years old. A ghost who comes out when the moon is full. A ghost ... who lives deep inside the cave! Jerry knows that it's just another silly made-up ghost story.... Isn't it? Jerry and his sister, Terri, meet Sam and Louisa, who tell them a story about a ghost who lives in a cave near the beach. The only problem is that it is not just a story. There really is a ghost, and he is haunting Jerry and Terri This book is filled with mystery and excitement, Terri and Jerry both try to solve the mystery of ghost with his friends. It said that the ghosts live in the cave, but will their friends turn against them?