The spirit of a dead actress turns two children invisible and sends them out among a group of colorful street performers to search for a missing necklace.
Living at the Bessledorf Hotel, where his father works as the manager, Bernie tries to solve the mystery of a troubled, young ghost who wanders the halls of the hotel at night.
When Father Higgins disappears, Johnny Dixon and Professor Childermass discover disturbing clues which lead them to England and an encounter with a long-dead knight.
While spending the summer in an old house on a desolate Canadian island, Anthony Monday and Miss Eells discover a chest that can transport them to another world and a maniacal group who are plotting the destruction of people on Earth.
Thirteen-year-old Crystal, confined to a wheelchair after being injured in a car accident in which her father was killed, begins to suspect there are forces conspiring against her when the eccentric older woman who is caring for her in her mother's absence goes missing.
Unconvinced that there are beasts in the moors near the Baskerville home, the new heir to the family estate turns to Sherlock Holmes and his assistant, Dr. Watson, to find out who is behind the mysterious death of his uncle.
While investigating a haunted house, the Cannoiers discover a group of scientists who are creating an army of indestructible mutant soldiers to fight the Germans in pre-World War II London.
