While mainland Britain shivers in deepest winter, the northern island of Fara bakes in the nineties, and the boys at the Met station have no more idea what is going on than the regulars at the Swan. Only a stand-offish visting scientist realizes space aliens are to blame.

This is the story of the shy Mongol boy Temujin who,during the 13th century, becomes the fearless Mongol leader Genghis Khan that unites all Mongol tribes and conquers India,China,Persia,Korea and parts of Rusia,Europe and Middle-East.