Several minutes later, indeed, a figure appeared in the western sky.
At first, it was just a small black dot barely visible to the naked eye, which soon expanded in the eyes of the onlookers. It had a slender neck and a horned head, wings whose span was close to 1.5 times the length of its body, as well as thick legs and a tail.
Only, it was all made of bones.
Yet even as just bones, its size was enormous, indicating that if it were to have flesh and scales, it would be an even more terrifying behemoth.
Thick black fog swirled around the Bone Dragon, causing its skeletal frame to appear and disappear within the fog. In fact, it was this black fog that endowed the Bone Dragon with the ability to fly. It stemmed from the Extraordinary Runes engraved on the skeleton, forming an Array that allowed the object to ignore the effects of gravity and electromagnetism.