Bess Hooper the time travelling teenage sleuth is back and this time she has help from her best friend Eloise.
When Bess has a vision of a crying boy on the night of her fifteenth birthday, she dismisses it after a few weeks when no other clues appear. But after being invited to spend a week at the home of Eloise's cousin's home, the mystery begins to evolve after she spots a picture of the boy from her vision in a frame in their library.
After finding out that the boy, Sebastian Wescott, went missing in the forties, she joins forces with Eloise and her cousin Jack to try to solve the mystery.
But can Bess help solve the puzzle and keep her secret?