WARNING: The following contains spoilers for Wonder Woman #772, by Michael W. Conrad, Becky Cloonan, Travis Moore, Tamra Bonvillain and Pat Brosseau, on sale now.
Ever since the start of Infinite Frontier, Woman Woman has found herself trapped in the Norse afterlife of Valhalla with no discernible means to escape. And as Diana Prince stays longer in this strange domain, the more she loses her memories of the old world and the life she had before being trapped in a never-ending cyclical of death and rebirth.
With Wonder Woman scrambling to heal the Norse World Tree Yggdrasil and find a way to escape this realm, a longtime superhero on Justice League Dark ,Deadman, makes a surprise appearance to lend Diana Prince a vital helping hand in escaping from Valhalla and remembering who she truly is.
As Wonder Woman continues her journey across Valhalla, she encounters the DC Universe's Thor in a standoff with an armored sea god. Just the sight of this aquatic demigod triggers Wonder Woman's memories of defending the DCU alongside Aquaman -- though she can't quite recall the exact nature of this partnership. And while Wonder Woman puts up a valiant fight against the rogue god and the massive crab he rides into battle, she suffers a blow to the head that leaves her senseless. Diana expects the cycle of death and rebirth to begin again but, instead, she finds herself face to face with Boston Brand as she regains her bearings.
Deadman reveals he has used his unique connection between the living and dead to track Wonder Woman to Valhalla for some time but has struggled to keep up with her across the cycles. Just being the presence of Deadman makes Wonder Woman feel the draw to join him and return to the outside world, with Boston implying that something had gone mysterious wrong. However, Diana stops short as she remembers that she gave her word that she would save Valhalla and Yggdrasil, despite Deadman pointing out that the World Tree's fate ultimately falls under the jurisdiction of the Green and the Parliament of Trees.
Deadman has kept a relatively low profile since the start of the Infinite Frontier era, with the Justice League Dark naming Zatanna as its new leader and the magical team preoccupied with combating the evil Arthurian wizard Merlin. It's unknown how exactly Deadman knew to search for Wonder Woman in Valhalla but, as a tether to the outside world, he offers Wonder Woman her long-sought means for escape, suggesting that Wonder Woman's entire ordeal in Valhalla may simply be an elaborate out of body experience as her physical body hovers between life and death, struggling for a way to revive itself.
However, since Deadman was able to access Valhalla and presumably have the means to escort Wonder Woman out, the Amazon superhero is still going to see her Norse mission through to completion. Fresh off of an encounter with a familiar foe in Valhalla, Wonder Woman is finally reunited with a friendly face in Boston Brand. The stage is set for Wonder Woman's eventual return to the DCU and, with it, her greater knowledge of the nature of Infinite Frontier. But rather than joining Deadman just yet, Wonder Woman must complete the final leg of her quest with her old Justice League Dark teammate as she journeys to the Fortress of the Valkyries to save Yggdrasil.