Redhawk Caldera What exactly are we dealing with here?

@Sorana? He called, a disembodied voice and nothing more; reaching through the caldera on the edge of the wind. The trees upon the little island that once served as the family den gave a quake, and as leaves fell, there appeared a ruddy red shape.

Reyes paced the bank of this small spit of land. He had found his form. Lingering where the water lapped at the edge, seeing nothing reflected but the suspended leaves that floated and clustered there; he would move on and call again, his voice carrying with the shifts in the wind's direction.

There was only the shudder of trees as reply.