Whoa, you mean Negative seams?
FeralCatMan Unusual disease collector.,
Fri 16 Jan 2015, 19:52,
archived)
exactly....like some kind of a rift in the space/time continuum.
(
PedroHin Come along & ride on a Flantastic Voyage,
Fri 16 Jan 2015, 20:12,
archived)