In this 20th-anniverary edition of the novel by Margaret Buffie, it’s going to be a long, hot summer for 15-year-old Lizzie. Normally a vacation at her grandmother’s northern Manitoba cottage is the highlight of the year, but this summer the whole family is going along, including her new stepfather whom she detests.

To escape the family’s bickering, Lizzie explores a nearby island, where she finds the remains of an old cabin and uncovers a pair of spectacles. When she tries on the old glasses she is surprised to find herself watching a woman and girl from the past.

Lizzie is determined to find out who these ghosts are, and why they are appearing to her. Enlisting the help of her grandmother’s teenage neighbor, Alex, she puts together clues about the ghosts’ identities and in doing so, finds a way to help her estranged family reunite. It’s a compelling story, carrying young readers from the present to the past and back again.