They've been popping up everywhere. I've gotten stuck under a couple myself.

[ For a certain value of "stuck." One, to her annoyance, made her all but incapable of finishing a train of thought. That was fun. ]

Apparently it's something that the little spirits or faeries or whatever you want to call them do, according to the locals.

[ Her better self says she should help him get out from under it. The selfish part of her doesn't want to get any closer and find out what it does to her this time.

Shannon sighs and steps forward, and promptly finds her lower body frozen in place. ]