He continued to stare at the chief inspector.

"Oh, all right," said Hadley irritably. "You're in your element again. A secret society, I imagine? The Black Hand, or something like it? A sign of vengeance? — Bah!"

"No" said the doctor slowly, "nothing of the sort. I wish it were a simple as that. This is as mediaeval, and devilish, and imaginative, as… Yes, by all means. I shall certainly go down to Gloucestershire. It must be a strange place. And I shall spare no pains to meet a murderer who knows about the eight of swords." He got up, flinging his cape over his shoulder like a bandit, and stumped to the window, where he stood for a moment staring down at the traffic on the Embankment; with his white-plumed mane of hair ruffled, and the glasses coming askew on his nose.

CHAPTER IV

"Look for the Buttonhook"

Hugh Donovan saw The Grange for the first time late that afternoon. He had lunched with the bishop, Dr. Fell, and Colonel Standish at Groom's in Fleet Street while they discussed plans. The bishop was affable. When he learned that the stout man in the cloak and shovel hat, who had blinked on everybody with such good humor in Hadley's office, was the celebrated schoolmaster whose amiable eye had singled out half-a-dozen of the shrewdest murderers ever to appear at Madam Tussaud's, then the bishop unbent. He was disposed to make his conversation that of one criminologist to another. But he seemed shocked at the doctor's lack of knowledge, and even lack of interest, with regard to modern criminals and up-to-date scientific methods.

Fortunately, he did not try to draw his son into the discussion. And the latter realized, with silent profanity, that he had missed the best opportunity ever put before him to save his face. If he had known on the boat who Dr. Fell was, he could have explained his difficulties to the old codger, and the old codger would /have helped him. You had only to listen to Dr. Fell's rumblings and chucklings, and his roaring pronouncements on the world in general, to be aware that nothing would have pleased him more than a game of this sort. Even now it was not too late. And besides, Hugh Donovan reflected, there was a consolation. Undoubtedly he would be admitted to the shrine now, under the most excellent of false pretenses, and see the high priests making their magic in a real case. He had always wanted to do so. Hitherto the bishop would have instructed him to go and roll his hoop, or some other undignified pastime, while papa had a shot at it. But now he theoretically knew all about ballistics, microphotography, chemical analysis, toxicology, and other depressing studies with figures in them. From the one or two glances he had taken at his textbooks, he had been mystified and annoyed. It was a fake. Instead of giving you something juicy in the way of hints about catching axe-killers, all they seemed to do was babble on about something being four-point-two and one-half plus x more than eleven nought-nought-point-two over y hieroglyphic. It was worst than chemistry.

Morosely he listened to the bishop expounding theories to Dr. Fell, and sipped Groom's excellent beer. All the alluring-sounding things were fakes, anyway: like chemistry. He remembered as a boy being fascinated by the toy chemical outfits in the shops. When they bought him one for Christmas, he had been delighted first off to see instructions for making gunpowder. That, he thought, was the stuff. Your mixture produced a fine black compound, very sinister-looking and satisfying. But it was a failure. He put a mound of it under his father's favorite easy-chair, attached a paper wick, lighted it, and awaited results. All it did was flare out like a flashlight-powder, and scorch the bishop's ankles; though his leap showed his athletic training of old. However, Hugh had to admit, better results were obtained with his manufacture of chlorine gas. By a liberal use of ingredients, he had contrived to paralyse the old man for fully five minutes. But, all in all, he was disappointed, and it had been the same with criminology. He much preferred detective work as set forth in the novels of his favorite author: that distinguished and popular writer of detective stories, Mr. Henry Morgan.

He frowned. This reminded him. If he remembered correctly, Morgan's novels were published by the firm of Standish & Burke. He must ask the colonel who Morgan was, and what he was like, The nom de plume Henry Morgan," his blurbs always announced, in tones of hushed reverence, "conceals the identity of a figure internationally known in the world of letters and politics, who has turned his genius and his knowledge of police procedure to the writing of the roman police" Donovan was impressed. He pictured the original as a satanic individual in evening clothes, with forked whiskers and piercing eyes, who was always frustrating somebody's plot to pinch the plans of the latest electromagnetic gun.

But he did not dare question Standish now, not only because the colonel seemed moody and distraught at the lunch table, but because he did not want to attract his father's attention at all. The Bishop of Mappleham was busy with Dr. Fell.