The Red Necklace — Sally Gardner

A SUMPTUOUS, ROMANTIC ADVENTURE
The winds of change are blowing through Paris in 1789, both for France and a mysterious Gypsy boy named Yann Margoza. He was born with a gift for knowing what people are thinking, and an uncanny ability to throw his voice, skills he uses while working for a foolish magician. On the night of a special performance, he meets shy Sido, a lonely heiress with a cold-hearted father. Though they have the shortest of conversations, an attachment is born that will influence both of their paths. While revolution is afoot in France, Sido is being used as the pawn of the fearful villain Count Kalliovski. Some have instead called him the devil; and only Yann, for Sido's sake, will dare to oppose him.