In the searing heat of an unnamed South American city, a gang of child-thieves runs wild. Demi has the gift of speed - he can pick a pocket and be gone before his victim has even noticed he was there. Baz is his lookout - no one sees her unless she wants them to. It's like a game: dodging the law, keeping one step ahead, being the fastest, the cleverest, the best.

But one day, almost by accident, they steal a dazzling, beautiful, priceless jewel - and make a very dangerous enemy.

There are 400 pages in this book. This book was published 2010 by Pan Macmillan .

Daniel Finn is a well-travelled teacher and writer who has written several books for younger readers, published under another name. When he started to write TWO GOOD THIEVES, and then CALL DOWN THUNDER, he knew they would be different from anything else he'd done - so he started to lead a double life, with two names and two very different writing styles. He lives and works in Surrey, with his wife and two grown-up children.