The realm of Aqualune had always been a harmonious blend of water and life. Its suspended islands floated gently over oceans of glittering azure, linked by streams that shimmered like ropes of liquid stars. Children laughed by clear ponds, while elders fished from silver rivers that sparkled even under the moonlight. Water was not merely a resource; it was the essence of Aqualune's existence. However, this vital heartbeat began to wane. At first, it went unnoticed—some peculiar bubbles surfacing in tranquil lakes, a patch of murky water by the docks, and a fountain that coughed instead of singing.