Echoes of the great song

Blurb

Echoes of the Great Song is a fantasy novel written by David Gemmell.
The novel explores several themes in the new-age paradigm of alternate history hypothesis, focusing on the existence, lives and demise of the Atlanteans. As is in much of Gemmell's fiction, the novel contains analogs for historical or mythical peoples and events. The Atlantean-type protagonists, the Avatars, have mastered pseudo-scientific magic to create a vast, powerful empire. The world on which the novel is set has "toppled" in a manner like that described by Hugh Auchincloss Brown, causing a cataclysm which destroys their civilization.