Xu Yan looked toward a desolate island ahead, his face a picture of surprise.
The island was moving slowly.
It seemed like a floating island, yet it was completely barren, without a single blade of grass in sight.
The island was not small, spanning more than ten miles, floating on the sea surface, slowly drifting along.
In the Azure Sea, the term "thousands of islands" referred to those with martial arts forces, where the Human Clan dwelt, not that there were only ten thousand islands in the Azure Sea Sphere.
As for how many islands truly existed within the vast ocean of the Azure Sea Sphere, no one could say for certain.
An island with a radius of ten miles was not considered significant in the Azure Sea Sphere and could easily be overlooked as a minor isle.
What captured Xu Yan's attention was not the island itself or the fact that it could move, but rather that this "island" was not an actual island at all.
It was, in fact, a huge black giant turtle in disguise.