Cybermat (The Lost Diaries of Winston Spencer Churchill)
From Tardis Wiki, the free Doctor Who reference
In 1879, a Cybermat appeared at the fifth birthday of Winston Churchill, who saw it as a miniature crocodile. Someone that young Winston interpreted to be a Punch and Judy man arrived and began tracking the crocodile. The man, who wore a long multi-coloured scarf, called Churchill "Winnie". Churchill found himself enjoying the company of the strange man. The figure, actually the Fourth Doctor eventually caught and smashed the crocodile, before disappearing in his Punch and Judy box. (PROSE: The Lost Diaries of Winston Spencer Churchill)
