Nearly-ten-year-old Poppy Malone finds her skepticism challenged again when she must deal with troublemakers at Lake Travis who look and act suspiciously like mermaids, which she knows do not exist.
Eleven-year-old Poppy's parents are paranormal investigators who have never actually found anything, but that may change when they move to Austin, Texas, and Poppy meets a goblin in the attic of their house.
Eleven-year-old Poppy is not sure she believes in any of the paranormal talents her family members claim to have, but when a crew of ghosts follows her home from the graveyard she may be the only one who can help them move on.