SIREN'S WATCH

The turquoise waters of the Andaman Sea had always been Tian Sheng's playground. A seasoned diver with hundreds of dives under his belt, he considered himself a master of the underwater realm. Today's dive, however, felt different. He was leading a group of four – rookies Maya and Ben, veteran diver Anya, and their excitable photographer, David. The plan was simple: explore a known reef system, photograph the vibrant coral, and return before sunset.

Everything went smoothly for the first hour. The reef teemed with life, colourful fish darting between coral branches. David, with his waterproof camera housing, was in his element, snapping away like a kid in a candy store. But then, a change in the current tugged at them, pulling them further than they intended.

Panic started to set in when the visibility dropped drastically. The vibrant reef faded into a murky grey, and the familiar landscape was replaced by towering rock formations. They were lost.