This story is a work of fiction with AI illustrations. Its characters and discoveries are imaginary.
This story is entirely fictional. When the cold current in Blue Bay suddenly weakens, Nara and Bimo set out in a miniature submarine to investigate the cause. Their journey leads them to a giant whale that has guarded the deep-water channels for centuries.
A Signal from Blue Bay
That morning, the surface of Blue Bay looked as calm as glass. However, Professor Luma knew that something was unusual. Her measuring wheel was turning very slowly, while the clusters of marine plants along the edge of the bay had begun to droop. The cold current that usually came from the Azure Trench could barely be felt.
Professor Luma sought the help of Nara, a young diver who enjoyed mapping sea caves, and Bimo, the designer of a miniature submarine called the Sea Mouse Deer. They brought lamps, a compass, communication equipment, and a small tube containing a light crystal. According to sailors’ tales, the crystal would glow when it was near the path of a cold current.
The Sea Mouse Deer descended past a garden of purple coral and schools of tiny fish that moved like ribbons. The deeper they dived, the dimmer the light crystal became. Then a long sound came from the distance. It was gentle, but its vibrations made the submarine’s walls hum.
The Guardian Behind the Mist
At the bottom of the trench, Nara saw silvery mist hanging between two cliffs. From behind the mist emerged a shadow many times larger than their vessel. A giant whale swam slowly, with patterns of blue light across its back. Whenever its tail moved, the cold water swirled into circles.
The whale introduced itself through a series of tones translated by Bimo’s communication device. Its name was Aruna, guardian of the cold current. Its duty was to open the Dew Gate at the bottom of the trench and then direct the flow of water to different parts of the ocean. However, the gate was blocked by the Echo Stone, a black boulder that continuously reflected sound and caused Aruna to lose its bearings.
Nara realized that the whale was not the frightening creature depicted in old stories. Aruna appeared exhausted after repeatedly trying to move the stone. It did not need greater strength, but help finding the notes that could calm the echoes around the gate.
The Riddle of the Dew Gate
Bimo guided the Sea Mouse Deer into a narrow gap beneath the Echo Stone. There, seven stone shells were arranged like steps. When touched by the current, each produced a different note. Nara suspected that the seven notes were the key to opening the gate without pushing the stone directly.
They tried playing the shells from smallest to largest, but the echoes grew louder. Aruna then sang a low note taught by the previous guardian. Nara listened carefully and discovered that the light on the gate flickered in time with the final three notes. She asked Bimo to play the shells in the same sequence while Aruna kept the swirling water steady.
The first note made the Echo Stone tremble. The second opened a thin line in the wall of the trench. When the third note sounded, the light crystal inside the vessel shone brightly. The Echo Stone was lifted by the flow from below and shifted to a safe place. The Dew Gate opened, releasing a clear, cold current that glittered like a river among the stars.
A Promise in the Depths
Aruna slowly swept its tail. It divided the current into several channels, then directed them toward Blue Bay and the surrounding underwater valleys. The silvery mist disappeared, revealing a stone garden that had long been hidden. At the center of the garden stood a small spiral-shaped marker, a relic of the previous guardians.
As a token of gratitude, Aruna gave them a light scale that had naturally fallen from its back. The scale would dim if the Dew Gate was disturbed again. Nara promised not to reveal the route to the trench to anyone who wished to disrupt its peace. Bimo also installed a marker buoy far from the gate so that other vessels would not stray into the area.
When the Sea Mouse Deer returned to the bay, Professor Luma’s measuring wheel was spinning rapidly. The clusters of marine plants stood upright again, following the flow of the water. Nara and Bimo did not share everything they had seen. They only said that far beneath the surface, there was a wise guardian who needed friends, not crowds of admirers.