Avalon

Hyperborea's sole "moon".

Avalon is a fruit husk-turned-spaceship occupied by the Fey that pilot it to various planets to pilfer their Anima, magic, and resources. It has been thoroughly terraformed into a woodland paradise lush with apple and apple-adjacent orchards. The atmosphere of Avalon is so thick with Source it borders on poisonous to most other beings.

Seeds from the fruit husk were turned into the Fey's four attack ships: Dáinn, Dvalinn, Duneyrr and Duraþrór.