The Pearl Thief by Elizabeth Wein

When fifteen-year-old Julia Beaufort-Stuart wakes up in the hospital, she knows the lazy summer break she’d imagined won’t be exactly like she anticipated. And once she returns to her grandfather’s estate, a bit banged up but alive, she begins to realize that her injury might not have been an accident. One of her family’s employees is missing, and he disappeared on the very same day she landed in the hospital. Desperate to figure out what happened, she befriends Euan McEwen, the Scottish Traveller boy who found her when she was injured, and his standoffish sister, Ellen. As Julie grows closer to this family, sh… Read more.