Lost worlds

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"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 shoulde...