PROSE: The Spear of Destiny

He'd fought with the man in the river for a long time, but finaly the poor human had succumbed to the cold and had been washed away to Valhalla.

The Doctor had managed to fish himself out of the river and had stood dripping on the riverbank, but within minutes the water had begun to freeze, threatening to turn him into a living ice sculpture.

The cold didn't worry him unduly. Given that his normal body temperature was way below human levels, the dip in the river had been no more than refreshing, certainly no deadly.

But it was a nuisance being damp and icy, so he began to walk briskly back along the bank, trying to pick up Jo's trail. One of the advantages of having a binary vascular system was that he could always pump his blood faster than normal if he choose to, raising his body temperature at will. Very soon his clothes were steaming as he walked along, and in twenty minutes he was as dry as a good martini.