Idunn (pronounced "ee-done", in some versions Iduna) is the Norse Aesir goddess who acts as the keeper of apples that grant her fellow gods' eternal youthfulness.
Magnus encounters a pigeon that tells him Samirah al-Abbas, Blitzen, and Hearthstone that he knows how to get the Sword of Summer, but he wants something in return: Idunn's apple of immortality. To get the apple, they will need to attract the sea goddess, Ran.
- Her name is traditionally spelled Iðunn.
- She is similar to the Greek Goddess of youth, Hebe.
- Idunn Mons, a mons of the planet Venus, is named after Idunn.
- The Swedish magazine Idun was named after the goddess; she appears with her basket of apples on its banner.
|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|