It is described as looking like the crater of an extinct volcano in the sea and being covered in moss, which helps keep Fenris Wolf imprisoned.
Magnus Chase, Samirah al-Abbas, Hearthstone and Blitzen arrive on the island and check on Fenris Wolf. They are found by Gunilla, two other Valkyries and Magnus’s hall mates. The son of Frey’s hall mates join him and fight Surt when his forces arrive. The wolf is cut free and battled by Sam until he is rebounded by Jack and Magnus banishes Surt and his forces. With the Valkyries dead the remaining forces return to the Hotel Valhalla.
|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 Hamshire | 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 | Chase Mansion | Dorchester | Fadlan’s Falafel | Folkvanger | Fort Wagner | Ginnungagap | Hotel Valhalla | Loki’s Cavern | Longfellow Bridge | Lyngvi | Morris Island | Provincetown Airport | River Oure | Sessrumnir | Svartalfheim | The Thinking Cup | Yggdrasil|