“It’s always that one on anyway,” he said. “She drives me up the walls with that voice of hers. A real bitch. Like a teacher I had back in the Primary.”

Minogue eased up at seventy, and listened to the faint whirr of the tires and the wind rushing by. He pretended to check traffic in the mirror so he could steal an occasional glance at his passenger, the new James Aloysious Kilmartin, this familiar stranger with a beard, a suit, and an odd stillness about him. Minogue wanted to believe that any return of Kilmartin’s mocking ways was good news.

Kilmartin had gone quiet since his suspension back in October. Persuaded to talk about anything in the news, he usually spoke in a tone of gentle contempt. Minogue missed Kilmartin the exultant cynic more than he would ever admit, even to himself.

Kilmartin had lost weight — maybe too much. Could he have even shrunk a little? He seemed to be using air-quotes a lot, as though nothing was to be taken at face value anymore, and more than a few times, Minogue suspected that Kilmartin had a wandering head.

There were too many topics of conversation out of the blue. Did Minogue know that Irish sailors had given Columbus the know-how to get across the Atlantic? Had he noticed the word scenario cropping up everywhere? Did he notice that no-one spoke in sentences any more? And what did Minogue know about the Culdees, the old Irish Christians who ignored Rome? Global warming, WiFi networks, the vomeronasal organ, J. Edgar Hoover’s belief that De Valera was a secret Jew?

He and Kilmartin still went on the walks each week. They were on varying days: one up at Carrickologan, the other at Dunlaoghaire Pier, or Killiney Beach. The walks had begun as a gesture but they had passed quickly through routine, into habit, and they ended up as duty. Minogue was less than thrilled about his. His real walks — as distinct from strolls with Kathleen — had been in the spirit of Augustine, solitary and self-escaping. James Kilmartin was a ruiner of walks.