From the publisher
The Arctic held a terrible secret. On far-off Bylot Island off Baffin Island was an ice castle, strangely guarded, with the remains of an ancient, highly sophisticated civilization. Grant Shepherd had seen it, and ever since was a man possessed, a prophet equally unwelcome in the bars of the north and the assemblies of the United Nations.

There were only two who listened to him: Mary, the girl of the camps, and Peter Benton, a Toronto reporter. What would they do with the primordial secret, so profound in its implications for our own present-day existence?

Had there really been a civilization greater than ours, and what horror or folly had destroyed it?