Meanwhile, huge and pale and speckled in the rain, the Shannon flowed on, under the bridge towards the mighty sea, past what looked like a disused Indian chutney factory in Bengal with a tall chimney, and past quays built in the 1870s for what was to be another Liverpool, though it never became one in spite of there being nineteen feet of water off them at high water springs.

      Here, the Shannon was 154 miles from its source on the slopes of Cuilcagh Mountain in County Cavan, near the Northern Ireland Border, a place I had promised myself we would visit if we could do so without getting our nuts blown off. At this rate, I wondered if we would ever live long enough to reach it.

      Then, suddenly, the rain stopped and the sun came out. Too unnerved by the happenings on the Sarsfield Bridge to really appreciate the fact, we pushed our bikes a few hundred yards or so through suburban Limerick along the N18 to Ennis and points north, then turned off it and rode out into the country on a lesser road between thin ribbons of bungalows, some of them offering yet more beds and breakfasts. And now for the first time we had the chance to appreciate what it was really like riding mountain bikes laden with gear. To me it was much as I imagined it would be to ride a heavily loaded camel, the principal difference being that you don’t have to pedal a camel.

      To the right now was Woodcock Hill, a green, western outlier of the Slieve Bearnagh hills; to the left were fields in which donkeys bemoaned their loneliness and battered old trees stood in the hedgerows, and beyond all this to the south was the Shannon, much enlarged since we had last set eyes on it, shimmering in the sun.

      A car passed, going in the opposite direction, and the four occupants waved to us cheerily, as did a young man in shirt sleeves, waistcoat and cap who was in a ditch, wielding a fearsome-looking slashing instrument on a long handle that made him look like a survivor of the Peasants’ Revolt.

      ‘It must be your Jackie Hooghly hat,’ Wanda said. ‘They think we’re Americans.’

      The wind was strong and cool, if not downright cold, but at least the sun was shining and the road was flat – well, almost. We were in Ireland at last. There was no doubt about that. In fact we were now in County Clare.

      At the village of Cratloe, an avenue led steeply uphill from silver painted gates to a grotto modelled on that of Lourdes, one of the countless thousands erected during 1954, the Marian Year of Special Devotion to the Virgin, decreed by Pius XII. Silver painted gates and railings in Ireland are an infallible sign of the proximity of something Catholic and therefore holy.

      To the south of the road was Cratloe Wood. Inside it was wet and dim and mysterious, with long, diagonal shafts of sunlight reaching down into it through the trees. Some of the oaks were descendants of those that had provided timber for the hammer-beam roof of London’s Westminster Hall, when it was built in 1399; and for the roof of the Amsterdam Town Hall, later the Royal Palace, built in 1648 on a foundation of more than 13,000 wooden piles. And long before all this, in the ninth century, men had come here all the way from Ulster to cut down oaks and carry them away northwards to make a roof for the Grianan of Aileach, the summer palace of the O’Neills, Kings of Ulster, on Greenan Mountain, near Londonderry. At some very far-off period the wood had been cut in two by what is now the N18, and another beautiful part of it is still to be found south of this road in a walled enclosure, which forms part of the demesne³ of Cratloe Castle. It belonged to the Macnamaras who, together with the O’Briens, seem to have had more castles in these parts alone – the remains of more than fifty have been identified – than most other families had in the whole of Ireland. At Cratloe itself there are three castles within half a mile of one another, which could constitute some kind of record.

      After paddling around in these woods for a bit, wishing we had brought our waterwings, we resumed our journey; but not before Wanda, one of whose foibles is to have no faith in maps, however good, or map readers, however accomplished, had knocked on a cottage door to enquire the way to Sixmilebridge, for which we were bound and to which I already knew the route.

      The misinformation she was given by an innocuous-looking old body – ‘Sure, it’s just away down the hill’ – sent her zooming off by herself under a railway line in the direction of Bunratty Castle, the largest of all the Irish tower houses. Had she actually reached it, she would have received no more than her deserts if the directors had put her to work as a serving wench at the mediaeval-type banquets for which they are internationally renowned.

      The village of Sixmilebridge bestrode the deep, dark, narrow Owenogarney river. It was really two villages, Old Sixmilebridge on the west bank and New Sixmilebridge on the east bank, built in the early eighteenth century, when an iron works was opened. It had brightly painted houses – a bit like Fishguard – streets with royal names such as Orange, George, Frederick and Hanover, which sounded a bit odd in the depths of republican Ireland, and seven pubs, only one of which served any kind of food, something which seemed extraordinary at the time but which, as we proceeded on our way through Ireland, we came to regard as commonplace. This pub was huge, considering the size of the village. It had three bars, decorated with imitation half-timbering, wallpaper of a sultry tropical design and hue and glass cases containing stuffed, predatory animals. I asked the landlord whether he thought a place the size of Sixmilebridge could really support seven pubs, since I know many villages of a similar size in England that can scarcely support one.

      ‘Why, yes,’ he said, apparently genuinely surprised by what he obviously regarded as a daft question in a place which in 1931 had a population of 325, and probably had even less now. ‘There’s a living for all of us.’

      ‘There was no need at all to be chaining your bikes up in Sixmilebridge,’ said a small girl of about seven with a hint of reproof, as we were unchaining them, preparatory to continuing on our way.

      We were still only nine miles from Limerick. If we went on like this and I continued to record what I saw in such superfluous detail it would take us five years to travel round Ireland, and the rest of my life to write about it. I put this to Wanda and she said perhaps it didn’t matter, and what other plans had I got for spending the evening of my days; but I knew she wasn’t serious about it. Nevertheless, emboldened by her hardening attitude I talked her into a detour of a mile or two to see Mount Ievers Court, a country house at the foot of the Slieve Bearnagh hills.

      As it was not open to the public, we hid our bicycles near the entrance and approached the house on foot across the park, in which it stood half hidden among trees, some of them enormous beeches, and invisible from the three roads that hemmed the property in.

      It was a tall house in every way: three storeys high, with a steeply pitched, tiled roof, tall chimneys, tall doorways and tall