In the depths of a reservoir lives a monstrous creature. Its existence is unknown to anyone except the teenage boy who feeds it. Six years ago it was a vicious little baby. Now it has grown huge, and its rusting cage can't hold it much longer... Stephen is a boy with many secrets, and the Beast is the biggest. His life in foster care, always bad, is getting worse, and he's in trouble with the police. All the odds are against him finding a decent place in the world, but his efforts to free himself of the Beast make him a hero that readers will never forget. "I really love this book... BEAST should be a monster hit" Amanda Craig, THE TIMES "BEAST has a tension that never lets up. Ally Kennen is a remarkably assured writer" INDEPENDENT SHORTLISTED for the CILIP Carnegie Medal