The listing, Sabriel by Garth Nix has ended.
This is a used paper back book with a name written on the inside cover. In great shape. The novel is set in two neighbouring fictional countries: To the South lies Ancelstierre, which has a technology level and society similar to that of early-20th century England, and to the North lies the Old Kingdom, where both Free magic and Charter Magic exist — a fact officially denied by the government of Ancelstierre and disbelieved by most of Ancelstierre's inhabitants. A wall separates the two countries. Near the border some magic crosses the Wall, especially on days when the wind is blowing out of the Old Kingdom. Since the fall of the Royal Family, dangerous entities roam, ranging from the undead to powerful sorcerers and Free Magic elementals.