Shadow Under Devil's Reef

2017 Halloween Module A Level 1 Adventure Publisher's blurb: The perfect October release! A raging storm has made the waters around Devil’s Reef impossible to navigate safely. The noble galleon, The Royal Dawn, has run aground and Princess Kaeko from faraway Fu-Lamia is now missing! Untold riches and glory await those who successfully find the princess and safely deliver her to Black Sand Port. As the greedy and ambitious adventurers set out to find the princess, their thoughts linger on the few Royal Dawn survivors that washed up on the beach with bodies that were corrupted by strange frog-like mutations. What kind of evil awaits the adventurers on that forbidden island?