Thule

A fictitious Northern Continent that the Thule Society and Ahnenerbe believed did exist, and was the cradle of Aryan civilization, before vanishing from existence.

It is believed to be in a state like unto Avalon. Only accessible under particular circumstances.

It does exist, and is the Domain of Karl Krafft, which he created in the early days of Earth after his Transendence of Time. Basing it upon the Thule he learned of. Creating a Beethoven's Sonnet, without any true Origin. In a way one could consider it Cuasa Sui, Self-Manifested.