Sophie Arundel is stranded in history, stuck in a grand house in 1925 England. Thankfully, she has her faithful dog with her. Oh, and fellow student Hugo: fit, privileged, and annoying.

Baffled by upper-class rules, courted by boring suitors, Sophie is desperate to get back to the twenty-first century. But the only way home is through a hidden portal — and to unlock its secrets, she must work with Hugo.

As one clue leads to another,