A Darkness of Dragons

Waterstones Children's Book of the Month for November 2018
Ten years on after the dreaded Piper of Hamelyn incident, young Piper Patch Brightwater finds himself on the run from a prison sentence for innocently playing a forbidden spell.
Accompanied by Wren, a girl cursed to live as a rat, and Barver, the fire-breathing dracogriff, the fleeing Patch suddenly finds himself pitched against the malevolence of the Piper himself.
Expect high-octane adventure as S.A. Patrick's children’s debut assembles a truly inspired fantasy world of dragons, magic and the sheer power of music, perfect for fans of the younger Terry Pratchett series.