Riordan Wiki
Nuvola apps important.svg Jotunheim is still unfinished

This article is still being updated with information. As such, information may be missing or incomplete. Please consult the talk page to see what you can help contribute to the page.

Jotunheim (pronounced "YO-tuhn-haym") is one of the Nine Worlds, more specifically the one inhabited by the Frost and Mountain Giants (otherwise known as the Mountain Jotnar).


Jotunheim is primarily mountainous with great drifts of snow and frozen rivers and lakes. A beach of jagged black rocks and chunks of ice stretches near the parted trees. On the opposite bank, sheer cliffs rises into the sky. The river had turned into full-on class-five rapids – a combat zone of white-water and half-submerged boulders. Upstream, the river was compressed between two skyscraper-size stone columns – man-made or natural, Their tops were lost in the clouds. From the fissure between them, the river blasted out in a vertical sheet – less like a waterfall and more like a dam splitting down the middle. According to Magnus, some parts of Jotunheim look like Vermont without the maple syrup advertisements.

According to Sam, the story of Jack and the Beanstalk is a cultural memory formed from when humans accidently blundered into Jotunheim.

Magnus Chase and the Gods of Asgard

The Sword of Summer

Magnus Chase and Samirah al-Abbas sail to Jotunheim to find the sea goddess Ran, whose attention they hope to attract by fishing for the World Serpent Jormungand. They also travel there with Blitzen and Hearthstone to find Thor and find out where Fenris Wolf is located.

The Hammer of Thor

Magnus, Sam, Blitz, and Alex Fierro visit Jotunheim to compete against Utgard-Loki in his bowling alley palace, Utgard Lanes. They win and get information about where Thrym's wedding is and how Loki manipulated many events.

The Ship of the Dead

Magnus, Mallory Keen, Halfborn Gunderson, Thomas Jefferson Jr., Hearth, and Blitz take off on the Big Banana through Jotunheim.

9 from the Nine Worlds

My Eight-Grade Physics Actually Comes in Handy

Samirah al-Abbas goes to the world of giants in order to take a new picture of Fialar, the egg of one of the three roosters that will crow when Ragnarök begins, to make sure it is not hatching.

Locations (MC)
Nine Worlds: Alfheim | Asgard | Helheim | Jotunheim | Midgard | Muspellheim | Nidavellir | Niflheim | Vanaheim
Cities and Towns: Boston | Flåm | New London | Provincetown | York
Administrative Divisions: Connecticut | Massachusetts | New Hampshire | North Yorkshire | Sogn og Fjordane | South Carolina
Countries: Confederate States of America | Norway | United Kingdom (England) | United States of America
Continents: Europe | North America
Other Locations: Alderman Estate | Bifrost | Blitzen’s Best | Boston Public Library | Bridal Veil Falls | Cape Cod | Charles River | Charleston Harbor | Chase Mansion | Dorchester | Fadlan’s Falafel | Folkvanger | Fort Wagner | Ginnungagap | Hotel Valhalla | Loki’s Cavern | Longfellow Bridge | Lyngvi | Morris Island | Nabbi's Tavern | Provincetown Airport | River Oure | Sessrumnir | Svartalfheim | The Thinking Cup | Yggdrasil