All-ages adventures spotlighting Marvel's mightiest movie star! - The Executioner, Asgard's most merciless warrior, is one of Thor's deadliest foes - but perhaps their strangest battle took place...on a pirate ship!? - When Thor is called home, Nova the Human Rocket hitches a ride - only to find Asgard in danger with an imposter on the throne! - When Thor and Valkyrie plunge into the Asgardian underworld on a dreadful mission, why do they bring Nova along? - Odin decides switches his sons' weapons to see whether Loki is worthy of Thor's hammer! - All this, and Thor's classic Silver Age debut! Collecting MARVEL ADVENTURES SUPER HEROES (2010) #6, #8 and #13; and material from MARVEL ADVENTURES SUPER HEROES (2010) #19 and JOURNEY INTO MYSTERY (1952) #83.