"The children will be safe enough with Robbie," he said, "but I can escort them if you prefer it."

"I do prefer it," she said briefly. "Thank you."

He bowed, and she crossed the yard to the children, who were already mounted, managing their ponies with the greatest ease.

"I shall stay here awhile," she told them, kissing each in turn, "and return later. No whipping of the ponies on the road, mind, to make them go the faster. And do as Alice bids you."

"We'll do as he bids," said the youngest, pointing her small whip at Roger, or he'll twist our tongues to see if they turn black.

"I don't doubt it," answered Isolda, "that, or some other method of enforcing silence."

The steward smiled in some confusion, but she did not look at him and he went forward, seizing the children's bridles in either hand, and began to lead the ponies towards the archway, jerking his head to Robbie to do likewise with the nurse's mount. Isolda came with us as far as the entrance gate, and then I was torn between compulsion and desire.

Compulsion to follow the little party led by Roger, desire to look at Isolda as she stood alone, waving to her children, unconscious that I stood beside her.

I knew I must not touch her. I knew if I did it would have no more effect upon her than a draught of air — not even that, for in her world I never had existed, nor ever could exist, for she was living and I a ghost without shape or form. If I gave myself the sudden useless pleasure of brushing her cheek there would be no contact, she would instantly dissolve, and I should be left with all the agony of vertigo, nausea and inevitable remorse. Luckily I was spared the choice. She waved her hand once more, looking straight into my eyes and through me, then turned and crossed the court back to the house.

I followed the riding party down the field. Isolda and Bodrugan would be alone for a few more hours. Perhaps they would make love. I hoped, with a sort of desperate sympathy, that they would. I had the feeling time was running out for them, and for me as well. The track led downwards to the ford where the mill-stream, coursing through the valley, met the salt-water from the creek. Now, the tide low, the ford was passable, and when the children came to it Roger released the bridles, and clapping his hand on the hindquarters of either pony set them to gallop through the splash, the children screaming with delight. He did the same to the third pony, bearing Robbie and the nurse, who let out a shriek that must have been heard on either side of the valley. The blacksmith from the forge across the stream — the fire's glow and the anvil beside it, and a couple of horses waiting to be shod showed that this must be the smithy — came out from his shed grinning, and seizing a pair of bellows from the lad at his side pointed them at the nurse, so that the blast caught her petticoats, already spattered with the mill-stream.

"Take the poker red from the fire to warm her up," shouted Roger, and the blacksmith made pretence of brandishing an iron bar, sparks flying in all directions, while Robbie, half-strangled by the hysterical nurse and doubled up with laughter, dug his heels into the pony's side to make him jump the more. The spectacle brought out the miller and his mate from the mill this side of the stream. I saw that they were monks, and there was a cart drawn up in the yard beside the building, tended by two others, who were filling it with grain. They paused in their work, grinning like the blacksmith, and one of them put his two hands to his mouth and hooted in imitation of an owl, while his companion flapped his arms rapidly above his head as wings.

"Make your choice, Alice," called Roger. "Fire and wind from Rob Rosgof in the forge, or shall the brothers tie you by your kirtle to the water-wheel?"

The water-wheel, the water-wheel, screamed the children from the further side of the ford, believing, in their excitement, that Alice was to be dowsed. Then suddenly, as swiftly as it had started, the sport was over. Roger waded through the splash with the water mid-thigh, and, seizing the children's ponies once again, took the right-hand track up the valley, with Robbie and the nurse in close pursuit. I was preparing to follow him across the ford when one of the labouring monks in the mill-yard let out another shout — at least, I took it to be the monk, and turned to see what he was about, but instead a small car, with an irate driver at the wheel, had braked sharply behind me.

"Why don't you buy yourself a deaf-aid?" he yelled, swerving past me, almost plunging into the ditch as he did so. I stood blinking after the car as it shot away, and the people in the back, seat, three abreast, dolled for a Sunday outing, stared through the rear window in shocked surprise.

Time had done its trick, too swift, too soon. There was no running mill-stream and no water-splash, no forge the further side; I was standing in the middle of the Treesmill road at the bottom of the valley. I leant against the low bridge spanning the marsh. A near- miss; it might have landed the whole party in the ditch, and myself as well. I couldn't apologise, for the car had already disappeared up the opposite hill. I sat still for a while waiting for any reaction, but none came. My heart was beating rather faster than usual, but that was natural, due to the shock of the car. I was lucky to escape. No blame to the driver, all my fault.

I began to walk up the hill to the turning where I had parked my own car, and sat in the driving seat for another short spell, fearing confusion. I must not turn up at the church unless my mind was perfectly clear. The image of Roger escorting the children on their ponies up the track through the valley was still vivid, but I knew it for what it was, part of the other world already vanished. The house above the sandflats had reverted to the Gratten quarry, grass-covered, empty, except for the gorse bushes and the tin cans. Bodrugan and Isolda were no longer making love. Present reality was with me once again. I looked at my watch, and stared in disbelief. The hands showed half-past one. Matins at Saint Andrew's had been over for an hour and a haif possibly longer.

I started up the car, guilt-stricken. The drug had played me false, spinning out the time in some incredible way. I couldn't have been more than half an hour at most up at the house, with another ten minutes, possibly, following Roger and the children to the ford. The whole episode had passed swiftly and I had done nothing but listen at the window, watch the children mount their ponies, and so away. As I drove up the hill I was more bothered about the action of the drug than the prospect of meeting Vita with another trumped-up excuse about walking and losing my way. Why the time-lag, I asked myself? I remembered then that when I went into the past I never looked at my watch-the impulse to do so never came; therefore there was no means of knowing how time passed: their sun was not my sun, nor their sky mine. There was no check, no possibility of measuring the time limit of the drug. As always, when the thing went wrong, I blamed Magnus. He should have warned me.

I drew up at the church, but of course nobody was there. Vita must have waited with the boys, fuming with rage, then begged a lift home from someone, or else found a taxi.

I drove to Kilmarth trying to think of some better excuse than losing my way and my watch having stopped. Petrol. Could I have run out of petrol? A puncture. What about a puncture? Oh, bloody hell, I thought… I rattled down the drive and swerved to a standstill before the house, then walked through the front garden, up the steps and into the hall. The dining-room door was closed. Mrs. Collins, with an anxious face, emerged from the passage to the kitchen.

"I think they've finished," she said apologetically, "but I've kept yours hot. It won't be spoilt. Did you have a breakdown?"

"Yes," I said, with gratitude.

I opened the door of the dining-room. The boys were clearing away, but Vita was still seated at the table, drinking coffee.

"God damn that blasted car…" I began, and the boys turned round, staring, uncertain whether to giggle or slink away. Teddy showed sudden tact, and with a glance at Micky they hurriedly left the room, Teddy bearing out the laden tray.

"Darling," I went on, "I'm most frightfully sorry. I wouldn't have had this happen for the world. You've no idea…"

"I've a very good idea," she said. "I'm afraid we've rather spoilt your Sunday."

Her irony was lost on me. I hesitated, wondering whether to continue or not with my brilliant story of a breakdown on the road.

"The vicar was extremely kind," she went on. "His son drove us back in their car. And when we arrived Mrs. Collins gave me this." She pointed to a telegram beside her plate. "It arrived just after we left for church," she said. "Thinking it must be important, I opened it. From your Professor, naturally." She handed me the telegram. It had been wired from Cambridge. 'Have a good trip this weekend, it read. Hope your girl turns up. Shall be thinking of you. Greetings. Magnus.'

I read it twice, then looked at Vita, but she had already turned towards the library, blowing clouds of cigarette smoke over her shoulder, as Mrs. Collins came into the dining-room bringing me an enormous plate of hot roast beef.

CHAPTER TWELVE

IF MAGNUS HAD wanted to drop a deliberate brick it could not have been better timed, but I absolved him. He believed Vita to be in London and myself alone. Nevertheless, the wording was unfortunate, to say the least. Catastrophic would be more apt. It must have conjured an instant vision to Vita of my sneaking off with shaving-kit and toothbrush to meet some floozie in the Scilly Isles. My innocence would be difficult to prove. I followed her into the library.