Some summers seem like they will never end. And some end too soon. Still reeling from the events of X OF SWORDS, Cable turns back to the matter of missing mutant babies - a matter that he knows a thing or two about. But when his investigations lead him to a very familiar face, he'll need all the luck he can get - from Domino! She's been a steadfast ally to the older Cable for years, but how will she react when meeting his younger past self for the first time? As the paradoxes of time travel stack up, Nathan's future is coming back to haunt him - and he isn't ready. Yet. But as young Cable inches toward the startling secret of a lost child, an inevitable reckoning draws ever closer.
