What is the Worldheart? Plucked by Thor and his companions from the deepest roots of Yggdrasil - the World Tree, split in twain - the cosmic seed is now the most coveted object in Odin's possession. But the Silver Surfer - herald of Galactus, devourer of worlds - recognizes the Worldheart as the one object that could forever sate his master's apocalyptic appetite. Now, the Surfer has come to Asgard to claim a prize Odin will not surrender without a fight - and Thor is caught in the middle. Collecting: The Mighty Thor 1-6
