It wasn't a mirage. The dead city is real.

Unthinkably massive, with bizarre, arcane architecture, it has lain hidden from the world for aeons. The city is a relic of a time when the earth was young, and the Antarctic was a tropical paradise. Who could possibly have built something like this?

Dyer and Danforth search for answers, exploring the ruins before descending into the catacombs beneath them. They seek the truth... but they should be careful what they wish for.