The Mystery At Shark Reef

A new species of shark has been discovered. Avery and Evan want to see sharks and perhaps find a real shark tooth. But something is wrong at the shark reef, and the kids need to figure it out before someone gets hurt. They use their science, technology, engineering and math (STEM) skills to solve the mystery. For ages 7-14. Paperback by Carole Marsh, 160 pages.