Welcome to a world gone mad. Where dinosaurs roam with humans and Cadillac's race woolly mammoths. Welcome to all of Earth's ages rolled into one! Meet Jack Tenrec - Cadillac Jack - part mechanic, part shaman. Meet Hannah Dundee, scientist, diplomat, explorer. Together willingly or unwillingly they seek the secrets of the Xenozioc. What they find is inside…Two more stories featuring Cadillac Jack Tenrec; revealing the deadly secrets of the catacombs beneath the city, and adventures in postal service in the Xenozioc age!