The high Marine Council is meeting. A threat looms. Paulo eavesdrops on the adults and learns that the reef has been invaded by a colony of crown-of-thorns starfish, which prey upon coral. Quick, something must be done! The Phenomenal Fins and Shells Club will have to cross the Plain of a Thousand Dangers, the realm of sharks and moray eyees, to try and avert disaster. This pulse-pounding kids' adventure comes with a glossary to introduce children to what's going on with coral reefs and marine biodiversity.