Marvel’s Thor saga just hit a massive new checkpoint, and the next mission is honestly wild: bring Thor back. After Al Ewing’s Immortal Thor ended with the classic God of Thunder dead, The Mortal Thor shifted the spotlight to the mortal hero Sigurd Jarlson. Now, with The Mortal Thor #14 carrying the legacy numbering of Thor #800, Sigurd’s story is expanding from an Earth-based journey into a full-scale adventure across the Nine Realms.

The stakes could not be higher. Thor’s death changed the history and memory of Earth, while the destruction of the Rainbow Bridge and Black Bridge left the Asgardians almost completely forgotten by humanity. Sigurd is now being sent into the realms of myth to fix a problem far beyond the average hero quest. The biggest twist? He has to do it without Thor’s powers, without a hammer, and without the godlike abilities normally associated with the character.

And this is where Marvel’s latest chapter starts feeling like the ultimate endgame mission. Sigurd has survived repeated deaths, endured the World Serpent’s brutal trial, and earned Odin’s intervention. Now Odin has handed him the objective that could reshape the entire saga: bring the Thunder God back.

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Thor Is Gone, and Sigurd Has Inherited the Impossible Mission

Thor’s absence has been hanging over Marvel’s Asgardian mythology since the conclusion of Immortal Thor.

In Immortal Thor #25, Loki killed Thor with an arrow-shaped Eternity Mask. After reaching Vidbláinn, Thor made his final stand against the Serpent and declared that neither he nor the Serpent was completely a god or a mortal. That distinction had major consequences for the human soul of Donald Blake, which belonged to neither side.

Thor ultimately sent Blake’s soul back to Earth. There, it was reincarnated as the mortal Sigurd Jarlson, creating the foundation for The Mortal Thor.

The ongoing story continues under the Thor title but deliberately moves away from the traditional God of Thunder. Instead, Sigurd has become the central character, giving the series a completely different power dynamic.

Now that mortal journey has reached its biggest turning point yet.

Sigurd is no longer simply trying to survive life without Thor’s powers. He has been given a mission directly tied to Thor’s return.

Sigurd Just Survived a Nightmare-Level Trial

In The Mortal Thor #14, Sigurd faces one of his most brutal challenges yet: the World Serpent.

Trapped inside the creature’s belly, Sigurd experiences countless lives and deaths. The nightmare keeps repeating, but he refuses to surrender. His determination ultimately proves his worth, allowing Odin the Wanderer to intervene and help defeat the serpent.

The issue also drops major revelations involving Loki, who appears as Lucky, and Kristin Seok. Loki reveals important truths about his identity and Sigurd’s connection to Earth, adding another layer to the increasingly complicated mythology surrounding the mortal hero.

After enduring the serpent’s seemingly endless cycle of death and rebirth, Sigurd finally demands an explanation from Odin. Why was he allowed to die again and again?

Odin’s response changes the entire objective of the story.

Sigurd was put through those trials because he needed to become capable of fighting to save everything. Then comes the huge reveal: Sigurd is now responsible for bringing Thor back.

That revelation effectively closes the current Earth-bound chapter of Sigurd’s journey and launches the next phase of the saga.

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The Next Mission Takes Sigurd Across the Nine Realms

The scale of Sigurd’s new quest is enormous.

Instead of remaining on Earth, he will travel across the Nine Realms in search of a way to restore Thor. Future issues will send him through locations including Niffelheim, Heven, Muspelheim and Jotunheim, along with other realms beyond them.

But there is one massive problem.

Sigurd does not have Thor-level powers.

He does not have Thor’s hammer.

He is heading into the realms of gods as an ordinary mortal.

His weapons are courage, intelligence and sheer determination.

That makes the setup feel less like a conventional superhero comeback story and more like a brutal RPG-style quest where the player starts with almost nothing and has to survive increasingly impossible encounters.

Writer Al Ewing has already teased just how ambitious this next chapter will be. In promotional comments, Ewing explained that Thor #800 closes several long-running plotlines that had been hanging over Thor since before his death. At the same time, the milestone issue launches Sigurd Jarlson into a quest through the realms of myth toward an Asgard that needs a Thor more than ever.

Ewing also emphasized Sigurd’s lack of powers beyond his courage, wits and willpower, asking whether a mortal can face the trials of the gods, save ten worlds and bring the Thunder God back to the people who need him.

Pasqual Ferry provides the artwork for this new chapter, something Ewing specifically praised, and Ewing’s final tease is hard to ignore:

“#800 is only the beginning!”

That line strongly suggests the milestone issue is not the conclusion of this story. It is the launch point for what comes next.

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Marvel’s Official Thor #800 Solicitation Sets Up the Quest

Marvel’s official solicitation for Thor (2026) #800 makes Sigurd’s objective even clearer. The issue is presented as a major Asgardian milestone, with the Serpent trapping Sigurd in the worst possible world for his greatest trial.

The solicitation then establishes the key challenge: Sigurd must prove himself worthy of entering the Realms of the Gods despite having no weapon in his hand.

Somewhere in the city, a man without even a hammer begins the ultimate quest—the quest for Thor.

That oversized anniversary issue is not limited to the main story. Thor #800 also includes backup stories from Chris Condon and Jesse Lonergan, plus a returning contribution from former Thor and Journey Into Mystery writer Kieron Gillen.

Pasqual Ferry is among the artists involved, while legendary artist Alex Ross provides the cover.

So while #800 celebrates an enormous publishing milestone for Thor, the issue is also functioning as a major launchpad for Ewing’s current saga.

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Thor’s Death Did More Than Remove a Hero

Thor’s eventual comeback has an even bigger problem waiting for him.

His death fundamentally changed Earth’s history.

After Thor was killed, Skurge sacrificed himself to destroy the Black Bridge to Utgard and the Rainbow Bridge to Midgard, protecting Asgard in the process.

With both bridges destroyed, Thor’s existence on Earth was effectively erased from history and memory.

That created an alternate historical situation where Beta Ray Bill took Thor’s place as the Thor figure in Earth’s history from the beginning. Meanwhile, most people on Earth stopped remembering the original God of Thunder and the Asgardians, treating them as little more than myths.

Sif has even acknowledged that the Asgardians have effectively become myths to Earth’s population.

That makes Thor’s eventual return much more complicated than simply bringing a dead hero back to life.

The big question is what happens to the world’s lost memories.

Will everyone suddenly remember Thor?

Could memories of Thor and Asgard return alongside him?

Or could Thor return to Earth only to discover that almost nobody knows who he is?

Marvel has not answered those questions yet. Sigurd’s quest could ultimately determine how much of the world that was lost returns with the God of Thunder.

For now, those outcomes remain unresolved.

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Hela’s Queen in Black Story Is Still Part of the Bigger Picture

Thor’s potential return also appears connected to other ongoing Asgardian developments.

The “Queen in Black” storyline involving Hela remains part of the broader narrative, while efforts surrounding Asgard continue as well.

Exactly how those storylines will connect with Sigurd’s quest and Thor’s eventual restoration has not been revealed. The pieces, however, are increasingly pointing toward a much larger Asgardian storyline.

There is also no indication that Thor is returning immediately.

The full resolution of Sigurd’s quest and Thor’s eventual comeback appear to be at least several months away.

That means Marvel is treating this as a long-form storyline rather than a quick resurrection reveal.

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Al Ewing’s Thor Saga Is Entering a Completely New Phase

The latest development continues Al Ewing’s multi-act approach to Thor.

Immortal Thor explored the character through a heavily mythological lens, treating Thor as a legendary figure while digging deeper into Asgardian mythology. Then Thor died, and The Mortal Thor dramatically changed the formula by making Sigurd Jarlson the central figure.

Most importantly, Sigurd was stripped of the powers that normally define Thor.

Now the mortal chapter is evolving into something even bigger: a quest to restore the Thunder God himself.

That gives Thor #800 a dual purpose. It celebrates Thor’s long publishing history while pushing the current story toward one enormous objective: bringing Thor back.

For now, Sigurd is the character carrying that mission.

He is mortal.

He is powerless.

He has no hammer.

But Odin believes the brutal trials he endured were necessary to prepare him for exactly this task. Whether Sigurd can survive the Nine Realms, save ten worlds and ultimately restore Thor remains one of the biggest questions hanging over Marvel’s current Asgardian saga.

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Disclaimer

The events and character developments discussed in this article are based on the provided source material and reporting concerning Marvel Comics’ Thor storyline. Future issues may change or expand upon these developments. Details surrounding Thor’s eventual return, the restoration of memories, and the final outcome of Sigurd Jarlson’s quest remain subject to the published story.

Sources

• ComicBook.com
• Marvel – Thor (2026) #800 Official Issue Page
• Comics Beat – MORTAL THOR #14 to mark 800 issues for the God of Thunder
• AIPT – Thor is gone and Marvel is celebrating issue #800 with a very different hero

Featured Image Credit: Marvel Comics

Image 2 Credit: Marvel Comics