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Warning! This page contains spoilers for The Sword of Summer.
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Irene accompanied Gunilla, Margaret, and Magnus' hall mates to Lyngvi to apprehend Magnus Chase, Samirah al-Abbas, Blitzen and Hearthstone. The Valkyries and enherjar fight Surt and his army. The Valkyries die during the fight. A funeral is later held for her, Gunilla and Margaret.
|Magnus Chase and the Gods of Asgard|
|Core Series:||The Sword of Summer | The Hammer of Thor| The Ship of the Dead|
|Main Characters:||Magnus Chase | Alex Fierro | Blitzen | Halfborn Gunderson | Hearthstone | Mallory Keen | Samirah al-Abbas | Sumarbrander | Thomas Jefferson Jr.|
|Minor Characters:||Annabeth Chase | Frederick Chase | Gunilla | Randolph Chase|
|Norse Gods:||Freya | Frey | Thor | Loki | Odin | Frigg | Ullr | Vidar | Heimdall | Sif|
|Minor Gods:||Hel | Mimir | Ran | Aegir|
|Jotnar:||Surt | Utgard-Loki | Ymir|
|Monsters:||Ratatosk | Jormungand | Fenris|