Islands in the Sky — Michel Savage

At the edge of the world an impossible relic from the fables of antiquity has risen from the frozen wastelands of Antarctica. Professor Logan and his exploration team rush to investigate this historic find, but this unique discovery puts their lives in peril when they unearth the remnants of a long forgotten civilization left buried beneath the ice. Within the twisting labyrinths below the melting glaciers they uncover an ancient culture which had perished from a mysterious cataclysm. They soon realize it was a polar shift which had caused their destruction; like the one which now threatens a global disaster that could hurl our modern world back into the Dark Ages.