Book One: The Lost ReefA hidden reef. A mysterious tag. And a race to uncover the truth before it's lost forever.Ten-year-olds Kai, Lani, Emma, and Toby have just joined the R/V Calypso Voyager, a floating classroom and research vessel sailing through the waters of Thailand. As newly certified scuba divers, they expect coral reefs, sea turtles, and maybe a few harmless sharks. What they don't expect is a tangled ghost net-and the strange tag buried inside.When the young Ocean Rovers start investigating the tag's origin, they stumble onto something much bigger: a long-lost reef, vibrant with life, that was mysteriously excluded from the marine park. With their curiosity hooked and their skills growing, the team must dive deeper-into a web of secrets-before the reef is damaged beyond repair.Written by a PADI dive instructor, The Lost Reef blends real scuba techniques, fascinating marine life, and edge-of-your-seat action into an enjoyable read for kids aged 8-12. The Lost Reef launches a thrilling new series where science meets mystery and kids become the heroes of the deep.