Gierrod is a Jotunn.
Gierrod comes home drunk to find Magnus Chase, Samirah al-Abbas, Hearthstone and Blitzen in his palace. They ask him if he has Thor's weapon, which they assume to be Mjølnir. He agrees to barter with them for the weapon; if they play a game of catch and survive for ten minutes, he'll let them take Thor's Staff and Gunilla, who had been captured by Geirrod's daughters, Greip and Gjalp. Halfway through Geirrod's very fatal game of catch with hot coals, Magnus tells him that they killed his daughters, which angers him and causes him to throw the coals at the support beams until the ceiling collapses, crushing him to death.
|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 | Percy Jackson | Amir Fadlan | Alderman | Inge | Helgi | Hunding | Lars Alhstrom|
|Norse Gods:||Freya | Frey | Thor | Loki | Odin | Frigg | Ullr | Vidar | Heimdall | Sif|
|Minor Gods:||Hel | Mimir | Ran | Aegir | Nine Billow Maidens | Sigyn | Norns | Njord | Skírnir|
|Jotnar:||Surt | Utgard-Loki | Ymir | Thrym | Thrynga | Geirrod | Gjalp | Greip | Harald | Tiny | Hrungnir | Red | Tattoo (Giant) | Gunlod | Suttung | Baugi | Skakdi | Hyrm|
|Monsters:||Ratatosk | Jormungand | Fenris | Wight | Brunnmigi | Lindworms | Nidhogg | Vedrfolnir|
|Magical Creatures:||Sleipnir | Stanley | Marvin | Otis (Goat) | Elf | Dwarf | Jotunn | Hulder | Nøkks ||