'There are three doors that I may show you. You will find a different kind of power behind each one . . .'Adam has found something incredible in a rubbish dump in London. A mysterious, mythical, magical animal. A TYGER.And the tyger is in danger. Adam and his friend Zadie are determined to help, but it isn't just the tyger's life at stake. Their whole world is on the verge of destruction. Can they learn to use their powers before it's too late?