Don't poke your nose down a wormhole - you never know what you might find.Two universes joined by a wormhole pair that forms a 'loophole', with an icemoon orbiting through the loophole, shared between two different planetary systems in the two universes.A civilisation with uploaded minds in virtual reality served by artificial humans.A ravening Horde of replicating machines that kill stars.Real humans from a decrepit system of colony worlds.A race of hyperintelligent but somewhat vague aliens.Who will close the loophole... who will exploit it?Cover design: David A. Hardy