Ever since her near-fatal drowning, Cassidy has been able to pull back the "Veil" that separates the living from the dead and see ghosts, not that she wants to, and she was really looking forward to a ghost-free summer at the beach; however her parents are going to start filming a TV series about the world's most haunted places, starting with Edinburgh with its graveyards, castles, and restless phantoms--and Cass and her personal ghost companion,...

Peter has adventures the whole way to Scotland.

After visiting the castle in Scotland which her family has inherited and returning home to Canada, twelve-year-old Emily finds that she has accidentally brought back with her a boggart, an invisible and mischievous spirit with a fondness for practical jokes.

Traveling in the Scottish Highlands, Mandy rescues a Dales pony named Jewel who's been caught in a farmer's pumpkin patch. After meeting Jewel's owners, Mandy helps the pony overcome a fear that prevents her from competing in shows.