Hermann Wieland’s Atlantis, Edda und Bibel treats Plato’s drowned island, the Edda, and the Bible as one Germanic history. The holy city in the sea is the ringed capital on the Idafeld, which he also calls Asgard, Thule, and Babylon. He dates the sinking to 9564 B.C., about 11,500 years ago, reads the twelve Asen as the twelve tribes of Israel, and makes Baldur a prehistoric Germanic king later called Jesus.
The copy I used is a later facsimile of the third, wholly revised edition, Weißenburg, Großdeutscher Verlag, 1925, originally printed by Benedikt Hilz at Nuremberg, with 86 illustrations. The text is out of copyright. The quotations in the review are from this edition.