The watcher in the shadows

"When fourteen-year-old Irene Sauvelle moves with her family to Cape House on the coast of Normandy, she's immediately taken by the beauty of the place--its expansive cliffs, coasts, and harbors. There, she meets a local boy named Ismael, and the two soon fall in love. But a dark mystery is about to unfold, involving a reclusive toymaker who lives in a gigantic mansion filled with mechanical beings and shadows of the past"--