There once was an island dead west of the sunset,
A place where the sun's rays danced carefree and bright,
Its shores all a-shimmer in white shining beaches,
And jungles aplenty with ga.me day and night.
They say that the people who lived there were happy,
They say that they lived their lives simple and fair,
Yet one day a bitter wind rose from the ocean,
And caught the poor folk by surprise unaware.
For ruin had risen in thunderous fury,
A ravenous shadow fell over the shore,
And when Father Dagon's black gullet gaped open,
The waves ran with blood and the isle was no more.
From the dagon article in Dragon magazine, and IMO the best of the verses in the Demonomicon articles, and very suited to Atlantis themes.