"Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon--the mightiest force in the Nine Worlds. But this time the hammer isn't just lost, it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants. Ragnarok will begin. The Nine Worlds will burn. Unfortunately, the only person who can broker a deal for...

"It's the dark origin of the Apocalypse Twins as Kang's true motives are revealed! A secret pact between Ahab and the Red Skull will bring horror to all mutants - but when a deranged Sentry kills an Uncanny Avenger, it's only the first casualty of many! As the Wasp faces the Grim Reaper, the Scarlet Witch confesses her true love and makes an impossible choice. And Sunfire and Rogue must defeat the Apocalypse Twins alone - or watch the end of our world!...