Young Adults

October, 1916. Clara is sent to stay with her formidable aunt and uncle in the grounds of a country estate. Clara soon discovers that her new surroundings hold secrets: a locked room and a hidden key, and a mysterious boy who only appears in the gardens at night... But can Clara face up to her own secrets, and a war she's desperate to forget?

How did the universe begin? What is a black hole? And what happens if you throw a party for time travellers...?