Sneaker

Sneakers are a type of light globe. When activated they bend light around an area, rendering that area effectively invisible. The area seems to be spherical centered on the sneaker; anything that enters the event horizon of the sneaker can see the user.

They are countered by Seekers, which glow when any Sneaker is active in the area.

Kaehl and Selda steal a sneaker during their escape from Aer.