Pahua Moua has a bit of a reputation for being a weirdo. A lonely eleven-year-old Hmong girl with the unique ability to see spirits, she spends her summer days babysitting her little brother and playing with her best friend, a cat spirit no one else can see.

One day Pahua accidentally untethers an angry spirit from the haunted bridge in her neighborhood--whoops. When her brother suddenly falls sick and can't be awoken, Pahua fears that the bridge spirit has stolen his soul. She returns to the scene of the crime with her aunt's old shaman tools, hoping to confront the spirit and demand her brother's return. Instead, she summons a demon.

Thankfully, a warrior shaman with a bit of an attitude problem shows up at the last minute and saves her butt. With the help of this guide, Pahua will have to find her way through the spirit worlds and rescue her brother's soul before it's too late. Little does she know she'll have her own discoveries to make along the way. . . .