Stone dragons have a tough outer covering made of a stone-like material. They eat rocks, using the minerals they contain for nourishment and to keep up their stone outer shell. They rarely move, and are the heaviest of all types of dragons. Although they have wings, indicating flight ability, no one has ever seen a stone dragon flying.
Ancala is literally stone faced. She stands like a great statue guarding the gateway into the valley where more of Siaorie's dragons dwell. Ancala watches over the only entrance to this valley, which is a crack of a passageway through an extremely high mountain range. The only other way to enter is through the sky, which Ancala can not reach with her rock solid body planted firmly on the earth. She leaves it to the other dragons protecting the area. Every now and then Ancala will pick away at the rocks in the passage way that fall down in a rock slide to keep the path clear and to get some food as well.