There was no difference between day and night when sailing in the forbidden Sea, and it was always pitch black.
In order to make it easier to observe each other's situation, special lamps were placed at the front, back, left, and right of each warship.
The fuel used for these lamps was the fat harvested from the bodies of sea monsters. After being lit, it would not go out for thousands of years and would emit a strange fragrance.
The light it released had an extremely strong penetrative power. Even though the darkness in the forbidden Sea was a kind of chaotic energy, it could still penetrate and dispel it.
The light was more than enough to illuminate the entire ship and the nearby sea.
From a distance, there were only stars and no traces of the giant ship.
Fortunately, as long as the light was there, it meant that everything was safe, and his companions in the distance did not have to worry.