Only Connect: Season 18, Episode 12

18 - 12: Scrummagers v Irregulars

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far – logic and lateral thinking are the vital extra ingredients.

In another knockout match, one of the teams works out what connects four clues after only seeing two of them: Narnian donkey and Edinburgh-based detective.

So what is the connection? And what were the two clues they didn't need?