Dragons of Deltora Special Edition Books 1 and 2

Everyone is Deltora thinks the dragons have disappeared. But young king Lief knows this isn't true, and that the time has come to find them. The evil Shadow Lord has poisoned the land with four vile creatures of sorcery buried with such stealth that only the bravest of heroes will find them. Lief and his companions Barda and Jasmine must struggle to reveal the origins of the sorcery and destroy them. Their only clues are fragments of an ancient map. And their only hope lies with seven unlikely allies, the last of Deltora's dragons.