Wan dismissed the girl as soon as he was certain she hadn't experienced anything strange - or at least wasn't acting like anything was wrong or out of the ordinary.

He walked over to where he had been and knelt down, touching the dirt with his hands and trying to get a sense for it's stability. Once again, it seemed fine. Maybe he had just hit a soft patch of dirt? Frowning, and still distracted, he went back to his bending practice. His feet moving in the spiraling and circling steps of an airbender.