The boy was not going back to school that half, and was settling down to a blissful summer at Fosse before he went north to Sandy Clanroyden at Laverlaw. He had six little kestrels sitting all day on the lawn, and Morag on her perch in the Crow Wood, and a young badger called Broccoli that rootled about in the stable straw and gave him heart disease at night by getting down into the entrails of the greenhouses. He was still under a mild doctor's régime, but was picking up strength very fast. Haraldsen had taken to him at Hanham, and I thought that his company might be wholesome for him. So I asked him to take on the job of being a good deal with my guest, for everything about Peter John suggested calm nerves and solid reason. There was something else in my mind.

      'Mr. Haraldsen is an invalid,' I said, 'and must keep quiet. He has been through rather a beastly experience, which I'll tell you about some day. It's just possible that the experience isn't over yet, and that some person or persons might turn up here who wouldn't be well disposed to him. I want you to keep your eyes very wide open and let me know at once if you see or hear anything suspicious. By suspicious I mean something outside the usual—I don't care how small it is. We can't afford to take any chances with Mr. Haraldsen.'

      Peter John nodded and his face brightened. He asked no questions, but I knew that he had got something to think about.

      Nothing happened for a week. The boy did Haraldsen good; Mary and I both noticed it, and Jack Godstow admitted as much. He took him to fish in the early mornings both in our little trout stream and in the Decoy ponds. He took him on the Downs in the afternoon to fly Morag. He took him into the woods after dinner to watch fox cubs at play, and try to intercept Broccoli's cousin on his way from his sett. Haraldsen began to get some colour into his face, and he confessed that he slept better. I don't know what the two talked about, but they must have found common subjects, for I could hear them conversing vigorously—Peter John's slow, grave voice, and Haraldsen's quicker, more staccato speech. If we were making no progress with Haraldsen's business we were at any rate mending his health.

      Then one evening Peter John came to me with news.

      They had been out hawking with Morag on the Sharway Downs, and on their way home had met a young man on horseback. At first Peter John had thought him one of the grooms from the Clipperstone Racing Stables exercising a horse, but as they passed he saw that the rider was not dressed like a groom. He wore white linen breeches, a smartly cut flannel coat, and an O.E. tie. He had taken a good look at the falconers, and the impression left by him on Peter John was of a florid young man with a small dark moustache and slightly projecting upper teeth. To their surprise they met him again, this time apparently in rather a hurry, for he was going at a quick trot, and again he scrutinized them sharply. Now, said my son, that meant that he had made a circuit by the track that led to Sharway Lodge Farm, and cut through the big Sharway Wood—not an easy road, and possible only for one who knew the country. Who was this young man? Did I know anybody like him, for he had never seen him before? Why was he so interested in the pair of them?

      I said that he was no doubt a stranger who was intrigued by the sight of the falcon, and wanted to have another look at it.

      'But he didn't look at Morag,' was the answer. 'It was Mr. Haraldsen that interested him—both times. You might have thought that he knew him and wanted to stop and speak.'

      'Did Mr. Haraldsen recognize him?' I asked, and was told No. He didn't know him from Adam, and Peter John, not to alarm him, had pretended he was one of the racing-stable people.

      Two days later I had to be at Gloucester for the Agricultural Show. When I was dressing for dinner in the evening Mary was full of the visitors she had had that afternoon at tea.

      'The Marthews, no less!' she said. 'I can't think what brought them here, for Caythorp is thirty miles off and I scarcely know them. Claire Marthew was a god-daughter of one of my Wymondham aunts—I used to meet her here in the old days when she was Claire Serocold and a very silly affected girl. She hasn't improved much—her face lacquered like a doll's, and her eyes like a Pekinese, and her voice so foolish it made one hot to hear it. She's by way of being uncommonly smart, and she babbled of grandees. But she was amiable enough, though I can't explain this sudden craving for my society. She brought her whole party with her—in several cars—you never saw such a caravan. Mostly women who had to be shown the house and the garden—I wish I were a better show-woman, Dick, for I become paralysed with boredom when I have to expound our possessions. There was one extraordinarily pretty girl, a Miss Ludlow—a film actress, I believe, who was content to smile and look beautiful. There were a couple of young men, too, who didn't say much. I told Peter John to look after them, and I think he took them to see the hunters at grass, and Morag, and Broccoli. By the way, I haven't seen him since. I wonder what he's up to?'

      Peter John was very late for dinner. In theory he should have been in bed by nine, but it was no good making rules for one whose habits, in summer at any rate, were largely nocturnal. At ten o'clock, when I was writing letters in the library, he appeared at my side.

      'Did my mother tell you about the people who came to tea?' he asked. 'There was a flock of them, and one was the man that Mr. Haraldsen and I met on Tuesday—the chap on horseback who wanted to have another look at us.'

      'What was his name?' I asked.

      'They all called him Frankie. My mother thinks it was something like Warrender—but not Warrender. I took him to see the horses, and he asked a lot of questions.'

      'Wasn't there another man?' I asked.

      'Yes, but he didn't count. He was a sort of artist or antiquarian, and couldn't be got away from the tithe-barn. It was this Frankie chap that mattered. He made me take him all over the place, and he asked me all sorts of questions about who lived here, and what their jobs were, and who our friends were, and if many people came to stay with us. It would have been cheek in anybody else, but he did it quite nicely, as if he liked the place enormously and wanted to know all about it. But you told me to look out for anything suspicious, and I thought him a bit suspicious.

      'And that isn't the end,' he went on. 'Frankie didn't go off with the rest. He started with them in a little sports car of his own, but he turned off at the lodge gate and tucked away his car in the track that leads to the old quarry. I was following him and saw him skirt the water-meadow and have a look at the back of Trimble's cottage. Then he moved on to Jack's, and lay up in the hazel clump behind it, where he could get a good view. I nipped in by the side door, and luckily caught Mr. Haraldsen, who was just starting out, and told him to stick indoors. Frankie was so long in the clump that I got tired of waiting and decided to flush him, so I made a circuit and barged in beside him, pretending I had lost Broccoli. He took it quite calmly, and said he was a keen botanist and had stayed behind to look for some plant that he had heard lived here. But he didn't want to stay any longer, so I saw him to his car, and he socked me two half-crowns, and then I went back to give the "All Clear" to Mr. Haraldsen.'

      I told Peter John that he had done very well, and had better get off to bed. His story had disquieted me, for this Frankie man had clearly been interested in Haraldsen, and it looked as if he had spotted his lair. That wasn't difficult, for, if there was anybody at Fosse who was not staying in the house, Jack's cottage was the only one big enough for a guest. I cross-examined Mary about Frankie, but she could tell me little. He had seemed a very ordinary young man, with pleasant manners and a vacant face—she remembered his prominent teeth. But she had got his name—not Warrender, but Varrinder. 'He's probably the son of the snuffy old Irish peer—Clongelt?—Clongelly?—who was said to be a money-lender in Cork Street.'

      It was, I think, three days later that Sandy Clanroyden came to visit us. He wired that he wanted exercise, and proposed that I should meet him at a distant railway station, send his kit back in the car, and walk with him the fifteen miles to Fosse. We had a gorgeous walk through the blue June weather, drank good ale at the little pubs, and dropped down from the uplands nearly opposite our lodge gates, where a wild field of stunted thorns formed the glacis of the hills. We had a clear view of a patch of highway, where two men were getting into a little sports car.

      Sandy sank to the ground as if he had been shot. 'Down, Dick,' he commanded, and, after a long stare, fixed in his eye the little single glass which he used for watching birds. All I saw