Lusi is a perfectly normal 12-year-old wizard except for the part where she can talk to ghosts. But everyone knows ghosts aren't real, so at best they think Lusi is lying and at worst that she's lost her mind. Her big sister Marsi is the only one who believes her, but Marsi is running away to escape Uncle's terrible plan to make her marry his creepy nephew. Lusi can't imagine being separated from her sister and leaves behind the rest of their family...