There may be spoilers ahead...
Matt Fraction continues to tell the tales of the Odinson in his run on The Mighty Thor. In this volume, which collects issues 7 - 12 and 7.2 of Fear Itself, we find out what has happened to Thor in the aftermath of the Serpent War.
To recap, Odin's evil brother Cul, aka The Serpent, was freed from his imprisonment by Sin the daughter of the Red Skull. He waged war on the Earth and Asgard but was defeated by Thor but as foretold millennia ago, Thor died in the process. This all happened in the Marvel event Fear Itself.
But Thor is not in Valhalla. He is in limbo and on his way to be consumed by the eater of Gods, the Demogorge. He cannot remember who he is, and neither can the citizens of Asgard. Thanks to some nifty magic by Karnilla, Queen of the Norns, she replaced Thor's presence and history with a new God of Thunder - Tanarus. Tanarus is actually Ulik the Troll who is under orders by his King Geirrodur to infiltrate Asgard and assassinate the All-Mother and pave way for an invasion by the Troll armies.
Asgard meanwhile is undergoing change. After the Serpent war, Odin returned to Asgard-space in self-imposed exile, leaving Fallen Asgard in its ruined state outside Broxton, Oklahoma. Tony Stark and his Stark Resilient company have begun construction of a new floating city whilst the All-Mother; Freyja, Gaea and Idunn, rule in Odin's absence and begin a new era as the entire Nine Realms attempt to unite into a single new republic of ASGARDIA.
But no one remembers Thor.
No one except Loki. With the help of the Silver Surfer, recently 'retired' from active service as Galactus' herald in The Mighty Thor, Vol. 1, Loki tries to recall his brother and stumbles across the Trolls plans to attack Asgard.
Can Loki succeed in helping the Asgardians remember Thor, thus exposing Tanarus/Ulik for the imposter he is and his plans to wipe out the All-Mother?
Can Thor escape the graveyard of the Gods inside the maw of the God-eater Demogorge and return to the land of the living?
Can Asgardia prevail against the combined might of the Troll army and Queen Karnilla?
All will be revealed inside this fabulous story.
With stunning artwork by Pasqual Ferry and Pepe Larraz and colouring by Frank D'Armata, this is an excellent tale of magic, mayhem and might from one of the current best comic book writers on top of his game. You may want to read Fear Itself to give you an idea of what has led to this story, but it's not essential. All hail Asgardia!