"Not yet. So far as I can tell, there is a sphere surrounding us, and it obscures all outside it. It cannot be closely approached, not attacked, lest you wish to grow tired, dizzy, sick feeling and eventually die... only to rise again, sick with a feeling worse than any plague I've ever known in all my many years."

Merlin shuddered. "Over slow days that feeling goes away, but yes. Another here, an archangel, a being of power, grew frustrated with things, and used his power to try to break out or break things down, and lost his power for some time."