Ysabel - Guy Gavriel Kay

Provence, in the south of France, is one of those parts of the world that can truly be called a paradise. But history teaches us that paradises are coveted, and fought over, and those sun-dappled vineyards and river valleys have also seen millennia of invasions and violence, strangers coming time after time to lay claim to it.
Accompanying his photographer father to the celebrated city of Aix-en-Provence, near Marseilles, 15-year-old Ned Marriner finds himself drawn into a centuries-old battle as dangerous, mythic figures from the Celtic and Roman conflicts of long ago erupt into the present, claiming and changing lives. The larger-than-life figures of a 2,500-year-old romantic triangle seem to be in the world again, and Ned and his family and friends are shockingly drawn into their tale on one night when the borders between the living and the dead are blurred and fires are lit upon the hills . . .