it's an okay book.. ( )

Jerry and Terri are visiting their "aunt and uncle" when they discover mysteries abound on their beach. Three of the local kids hint again and again about a ghost, but won't tell them the story. They finally do, but the siblings discover that the "ghost" has another story- that the kids are ghosts! Jerry and Terri trap the ghost kids, but have they gotten rid of all the ghosts on the beach? ( )