Ghost Twins Series by Dian Curtis Regan

*This is the ONLY edition authorized by the author, with updated text and new cover art*The Shook family moves into the Ghost Twins' former home-now a rental at the Kickingbird Lake Resort. And they bring a cat! How will Thatch, the Ghost Dog, handle a cat in his house? And what about the treasure the Shook kids find at Kickingbird Lake? The treasure belongs to the Ghost Twins--and they want it back. . . .

Overhearing two boys' stories about One Wish Pond, the twins and their faithful dog follow Jeff and T.J. on a camping trip to Mystery Island, planning to scare them, until spooky noises frighten the young ghosts as well.

When a new family stays in the ghost twins' house, Robbie and Rebeka and their spectral St. Bernard try to discover why the son fakes being hurt in front of his parents.

Thatch, the ghost dog, falls in love with a beautiful St. Bernard, and helps ghost twins Robbie and Rebeka solve the mystery of her disappearance.

Robbie, Rebeka and Thatch wind up in a turf war with another ghost when the Mountain Adventure Club Girls come to spend a night in their vacation rental house before hiking to Lake Park Campground.

Robbie and Beka return to Hanover School, where they were students fifty years ago, only to discover their alma mater's in big trouble--the kind only a couple of young ghosts can cure.

Twin ghosts, Robbie and Rebeka, and their ghost dog, Thatch, enter a fairy tale world where they must confront an ancient ghost to rescue a prince.