Fantastic Four #19

"THE DARK FOREST" PART ONE The Fantastic Four have built a new kind of telescope for their children, able to peer deeper into the unexplored depths of the universe... and have found something unexpected. It's not a biosignature, but a technosignature: solar engineering that could only be done by an incredibly advanced civilization. It's an invitation - one that they take... ...but soon discover that the society that sent it is long gone - and and those that destroyed them may still remain! It's the Fantastic Four - and their children - facing cryptic messages on the other side of the universe...all alone against a force they cannot defeat!