Once Magnus realizes he needs to leave the house, Uncle Randolph is right behind him and tells Magnus that there are people coming to kill him. Magnus decides to look out the window and finds that Hearth is outside standing next to a Leif Erikson statue, trying to use sign language to tell Magnus to get out of the house. While inside the house, he goes into Randolph's office to search for more clues and remembers how his mother had grown up in the house when she was younger. Having been estranged from his relatives for years even after his mother's death, Magnus decides to break into his Uncle Randolph's house for answers as to why he had suddenly contacted Frederick and Annabeth. Soon, Magnus finds the man and his daughter walking around, whom he recognizes as his Uncle Fredrick and cousin Annabeth Chase. Before disappearing, Blitz advises Magnus to see Hearth at Copley Square and cryptically states that 'they're coming'. Packing his few things, Magnus also learns from Blitz that the man and the girl are expected to pass his way. While sleeping under a bridge, Magnus Chase is awoken by his friend Blitz with the news that a middle-aged man and a teenage girl are looking for him. Sometimes, the only way to start a new life is to die. When an attack by fire giants forces him to choose between his own safety and the lives of hundreds of innocents, Magnus makes a fatal decision. To prevent Ragnarok, Magnus must search the Nine Worlds for a weapon that has been lost for thousands of years.

Trolls, giants and worse monsters are stirring for doomsday. The gods of Asgard are preparing for war. His uncle tells him an impossible secret: Magnus is the son of a Norse god. One day, he's tracked down by an uncle he's never met - a man his mother claimed was dangerous. Since his mother's mysterious death, he's lived alone on the streets of Boston, surviving by his wits, keeping one step ahead of the police and the truant officers. Magnus Chase has seen his share of trouble. On September 29, there was a six chapter preview released exclusively sponsored by Nook.

In September, multiple previews of chapters were released for free through different media outlets. Then, shortly afterwards, the book appeared on Amazon. The title was officially confirmed on Octowhen the The Blood of Olympus was released. The title of the first book was revealed early when The Blood of Olympus leaked before its scheduled release date, October 7, 2014. Rick Riordan announced that the new Norse mythology series would be titled Magnus Chase and the Gods of Asgard on Septemduring a webcast.

Magnus chase and the summer sword