Scorpion Sting (Extreme Adventures Book 4)

Sam Fox is on a caving expedition in the desert when the roof collapses, trapping his brother Nathan beneath tons of rubble. Nathan is in bad shape, and Sam is his only hope. But when he reaches the cave exit, Sam discovers a sea of huge, angry scorpions! And that's just the first deadly obstacle he will have to face if he's to get his brother out alive…
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Action has a new hero - Sam Fox! With a talent for attracting danger, Sam Fox is an expert at getting himself into (and out of) the most extreme situations. This series has a strong appeal with a courageous young hero and exotic settings and has non-stop action and short chapters which will engage reluctant readers.
From a parent:

I dare you to try pre-reading this book and be able to put it down after just one chapter.

About the author:
One of twelve children, Justin grew up on a farm in Otaki, New Zealand. He wrote his first book, a ten page cartoon about his pet turtle, Bubble, when he was nine years old. His next cartoon was about Moriarty, his guinea pig, and filled a complete exercise book. When he was eleven, Justin began writing his first novel, but conked out after 35 pages.