Thor, Vol. 3 Marvel Comics Full Set

Floating in the void of nonexistence, the son of Odin rests, having ended the cycle of Ragnarok to which the fate of the Asgardian gods was bound. But his rest is disturbed by one he thought had ceased to exist. Donald Blake, who himself knew the realm of nothingness very well when Odin parted him from Thor. Donald brings to Thor a new chance to return to Midgard, the mortal world...

And the chance to learn whether the end of Ragnarok spelled the doom of the Asgardians, or whether they might still exist, hidden in the souls and imaginations of mortals. To live again, all Thor must do is fight.