Jon and Tania go to a costume party at a museum full of ancient weapons and armor, and when they discover a ghost lurking among the relics, they try to help him with his mission so that he does not become a danger to everybody.
Thirteen-year-old Jon and his eleven-year-old sister Tania accompany their parents, who host a popular ghost hunting television series, to a spooky old hotel, where Tania's special ability to communicate with ghosts comes to light.
Readers will explore some of the most haunted places in the world, from California to Queensland, and report back with spine-tingling first-hand accounts.
