Calum Challenger is a boy with a mission: to track down supposedly mythological creatures and capture their DNA. But while Calum and his friends want to save these beings, an aggressive pharmaceutical company wants to wipe them out.

In this fast-paced, high-tech story, Calum and a group of misfit mates - a computer hacker, a freerunner, an ex-marine and a girl with a very big chip on her shoulder - criss-cross the globe, desperately trying to stay one step ahead of their enemy.

This book has been graded for interest at 9-11 years.

There are 336 pages in this book. This book was published 2013 by Pan Macmillan .

John Howe is a renowned fantasy artist and is best known for his work based on J. R. R. Tolkien's worlds. He worked alongside Alan Lee as a concept artist on Peter Jackson's film trilogy, The Lord of the Rings. Andrew Lane is a writer and journalist. He is the author of the bestselling and internationally acclaimed Young Sherlock Holmes series. Lost Worlds is Andrew's second series for children. He lives in Dorset with his wife and son.