I glanced at my watch. It was past twelve, and Mrs. Collins would be waiting to put away the groceries and cook my lunch. Also I had to write to Vita.

I settled to the letter after lunch. It took an hour or so to compose, nor was I satisfied with the result, but it would have to serve. Darling, I said, I had not realised, until your letter came this morning, that you were actually flying back today, so you won't get this before tomorrow. If I've muddled things, forgive me. The fact is there has been a tremendous amount to do here to get the place straight for you and the boys, and I've been hard at it ever since I arrived. Mrs. Collins, Magnus's daily, has been wonderful, but you know what a bachelor household is, and Magnus himself has not been down since Easter, so things were a bit sketchy. Also, and this is the real crux, Magnus asked me to go through a lot of his papers, and so on — he keeps a mass of scientific stuff in his laboratory which must not be touched — and all this has to be put away safely. He asked me to see to it as a personal favour, and I can't let him down, because after all we are getting the house rent-free, and it's some sort of return. I ought to be clear of this chore by Monday, but want the next few days free to get on with it, and the weekend too. Incidentally, the weather has been foul. It rained without ceasing all yesterday, so you aren't missing anything, but the locals say it will improve next week.

Don't worry about food, Mrs. C has everything under control, and she's a very good cook, so you won't have to worry on that score. Anyway, I'm sure you can occupy the boys until Monday, there must be museums and things they haven't seen, and you will want to meet people, so, darling, I suggest we plan for next week, and by then there should be no problems.

I'm so glad you enjoyed yourself with Joe and family. Yes — perhaps, in retrospect, it might have been a good idea to have flown the boys out to New York, but it's easy to be wise after the event. I hope you're not too tired, darling, after the flight. Ring me when you get this.

Your loving Dick.

I read the letter through twice. It seemed better the second time: it rang true. And I did have to sort things for Magnus. When I lie I like to base the lie on a foundation of fact, for it appeases not only conscience but a sense of justice. I stamped the envelope and put it in my pocket, and then I remembered that Magnus wanted bottle B from the laboratory sent up to him in London. I rummaged about, found a small box, paper and string, and went down to the lab. I compared bottle B with bottle A, but there seemed to be no difference between the two. I was still carrying the flask of yesterday in my jacket pocket, and it was a simple matter to measure a second dose from A into the flask. I could use my judgement when, and if, I decided to take it. Then I locked the lab and went upstairs, and had a look at the weather through the library window. It was not raining, and the sky was clearing out to sea. I packed up bottle B with great care, then drove down to Par to register it and to drop Vita's letter in the box, wondering, not so much what she would say when she read it, as how the monkey would react to his first trip into the unknown.

My mission accomplished, I drove up through Tywardreath and took the left-hand fork to Treesmill. The narrow road, with fields on either side of it, ran steeply to a valley, and before the final descent sloped sharply to a humped-backed bridge beneath which the main railway line ran between Par and Plymouth. I braked by the bridge and heard the hoot of the diesel express as it emerged from the tunnel out of sight to my right, and in a few moments the train itself came rattling down the line, passed under the bridge, and curved its way through the valley down to Par. Memories of undergraduate days came back to me. Magnus and I had always travelled down by train, and directly the train came out of the tunnel between Lostwithiel and Par we used to reach for our suitcases. I had been aware, then, of steep fields to the left of the carriage window and a valley to the right, full of reeds and stumpy willows, and suddenly the train would be at the station, the large black board with the white lettering announcing 'Par — Change For Newquay', and we should have arrived. Now, watching the express disappear round the bend in the valley, I observed the terrain from another angle, and realised how the coming of the railway over a hundred years ago must have altered the sloping fields, the line literally dug out of the hill-side. There had been other disturbers of the peace besides the railway. Quarries had scarred the opposite side of the valley on the high ground where the tin and copper mines had flourished a century ago — I remembered Commander Lane telling us once at dinner how hundreds of men had been employed in the mines in Victorian days, and when the slump came chimneys and engine-houses were left to crumble into decay, the miners emigrating, or seeking work in the newer industry of china-clay. This afternoon, the train out of sight and the rattle spent, all was quiet once again, and nothing moved in the valley except a few cows grazing in the swampy meadow at the base of the hill. I let the car descend gently to the end of the road before it rose sharply again to climb the opposite hill out of the valley. A sluggish stream ran through the meadow where the cows were grazing, spanned by a low bridge, and above the stream, to the right of the road, were old farm-buildings. I lowered the window of the car and looked about me. A dog ran from the farm, barking, followed by a man carrying a pail. I leant out of the window and asked him if this was Treesmill.

"Yes," he said. "If you continue straight on you'll come to the main road from Lostwithiel to Saint Blazey."

"In point of fact," I answered, "I was looking for the mill itself."

"Nothing left of it, he said. This building here was the old mill-house, and all that's left of the stream is what you see. The main stream was diverted many years ago, before my time. They tell me that before they built this bridge there was a ford here. The stream ran right across this road, and most of the valley was under water."

"Yes," I said, "yes, that's very possible."

He pointed to a cottage the other side of the bridge. "That used to be a pub in old days", he said, "when they were working the mines up at Lanescot and Carrogett. It would be full of miners on a Saturday night, so they tell me. Not many people alive who know much about the old days now."

"Do you know", I asked him, "if there is any farmhouse here in the valley that might have been a manor house in days gone by?"

He considered a moment before replying. "Well," he said, "there's Trevenna up back behind us, on the Stonybridge road, but I've never heard it was old, and Trenadlyn beyond that, and of course Treverran up the valley nearer the railway tunnel. That's an old house all right, fine old place, built hundreds of years ago."

"How long ago?" I enquired, interest rising.

He considered again. "There was a piece about Treverran in the paper once," he said. "Some gentleman from Oxford went to look at it. I believe it was 1705 they said it was built."

My interest ebbed. Queen Anne houses, tin and copper mines, the pub across the road, all these were centuries later than my time. I felt as an archaeologist must feel who discovers a late Roman villa instead of a Bronze Age camp.

"Well, thanks very much," I said, "good day to you," and turned the car and drove back up the hill. If the Champernounes had descended this road in 1328, their covered wagonettes would have been baulked by the mill-stream at the bottom, unless an older bridge than the one I had seen once forded it. Half-way up the hill I turned left into a side-lane, and presently saw the three farmsteads the man had mentioned. I reached for my road-map. This side-road that I was on would join the main road at the top of the hill — the long tunnel must run deep underground beneath the road, a fine feat of engineering — and yes, the farm on my right was Trevenna, the one in front of me Trenadiyn, and the third, near to the railway line itself would be Treverran. So what, I asked myself? Drive to each in turn, knock upon the door, and say, Do you mind if I sit down for half-an-hour, give myself what the drug-addicts call a fix and see what happens?

Archaeologists had the best of it. Someone to finance their digs, enthusiastic company, and no risk of a lunatic asylum at the end of the day. I turned, drove back along my side-road, and up the steep hill towards Tywardreath. A car, towing a caravan, was trying to edge its way into the entrance of a bungalow half-way up the hill, effectively blocking my passage. I braked, almost in the ditch, and let the driver proceed with his manoeuvres. He shouted his apologies, and finally succeeded in getting both car and caravan parked beside the bungalow. He climbed out of his car and walked towards me, apologising once again. "I think you can get past now," he said. "I'm sorry for the hold-up."

"That's O.K." I told him, "I'm in no hurry. You did a fine job getting your caravan clear of the road."

"Oh well, I'm used to it," he said. "I live here, and the caravan gives us extra room when we have summer visitors."

I glanced at the name on the gate. "Chapel Down," I said. "That's unusual."

He grinned. "That's what we thought when we built the bungalow," he said. "We decided to keep the name of the actual plot of ground. It's been Chapel Down for centuries, and the fields across the road are both called Chapel Park."

"Anything to do with the old Priory?" I asked.

He did not register. "There were a couple of cottages here once," he said, "some sort of a Methodist meeting-house, I believe. But the field names go back a lot further than that."