[farmfriend]

Looks like they stuck to the disk that applied the pressure.

[Fitzcarraldo]

They'd better have a way to look at that disk!

[Paradox]

Looks like they stuck to the disk that applied the pressure.

Wouldn't that have left depressions in the sand where the pebbles had been before the disc was retracted? I see a couple of depressions, but not enough to account for all the pebbles which went poof.