'A Houyhnhnm?' I asked. 'Also from Gulliver's Travels?'

Perkins nodded. 'Mathias, his mare and the two Yahoos were all used as consultants for Pierre Boulle's 1963 remake: La planète des singes.'

'Louis Aragon once said,' announced Mathias from the other side of the room, 'that the function of geniuses was to furnish cretins with ideas twenty years on.'

'I hardly think that Boulle was a cretin, Mathias,' said Perkins, 'and anyway, it's always the same with you, isn't it? "Voltaire said this—", Baudelaire said that—". Sometimes I think that you just … just—'

He stopped, trying to think of the right words.

'Was it Da Vinci who said,' suggested the horse helpfully, 'that anyone who quotes authors in discussion is using their memory, not their intellect?'

'Exactly,' replied the frustrated Perkins, 'what I was about to say.'

'Tempora mutantur, et nos mutamur in illis,' murmured the horse, staring at the ceiling in thought.

'The only thing that proves is how pretentious you are,' muttered Perkins. 'It's always the same when we have visitors, isn't it?'

'Someone has to raise the tone in this miserable backwater,' replied Mathias, 'and if you call me a "pseudo-erudite ungulate" again, I shall bite you painfully on the buttock.'

Perkins and the horse glared at one another.

'You said there was a pair of Hounyhnhms?' I interjected, trying to defuse the situation.

'My partner, my love, my mare,' explained the horse, 'is currently at Oxford, your Oxford – studying political science at All Souls and paying her way by doing the odd job in the oral tradition.'

'Whereabouts?' I asked, wondering where a talking horse might find employment.

'Jokes about talking horses,' explained Mathias with a shiver of indignation. 'You have heard the one about the talking horse in the pub, I trust?'

'Not for a while,' I replied.

'I'm not surprised,' retorted the horse loftily. 'Her studies do tend to keep her quite busy. Whenever she runs out of funds she does the rounds with a new one. I think she is reprising the talking-horse-with-greyhound gag at the moment.'

It was true. Bowden had used that one at his Happy Squid talent contest. This was probably why jokes 'did the rounds' – it was oral tradition fictioneers going on tour. Another thought struck me.

'Don't you think they'd notice?' I asked. 'A horse, at Oxford?'

'You'd be surprised how unobservant some of the dons are,' snorted Perkins. 'Where do you think Napoleon the pig studied Marxism? The Harris bacon factory?'

'Didn't the other students complain?'

'Of course! Napoleon was expelled.'

'Was it the smell?'

'No – the cheating. This way. I keep the minotaur in the dungeons. You are fully conversant with the legend?'

'Of course,' I replied. 'It's the half-man, half-bull offspring of King Minos' wife, Pasiphaë.'

'Spot on.' He chuckled. 'The tabloids had a field day: "Cretan Queen in Bull Love-child Shock." We built a copy of the Labyrinth to hold it but the Monsters' Humane Society insisted two officials inspect it first.'