He could have gone on for longer than that, warming to his subject as he developed the theme; but farther down the road the wobbling light of a lone bicycle blinked into view, and he stepped out from the side of the road as it came abreast of them and kept his hat down over his eyes and his face averted from the light while he asked the rider if he knew the home of Hogsbotham.
"Yes, sir, it's the fourth 'ouse on yer right the way yer goin'. Yer can't miss it." said the wanderer cheerfully, with a native's slightly patronizing simplicity, and rode on.
The Saint paused to light a cigarette, and resumed his stride. The lines of his face dimly illumined in the glow of smouldering tobacco were sharp with half humorous anticipation.
"Hogsbotham may be in London investigating some more nightclubs," he said. "But you'd better get a handkerchief tied round your neck so you can pull it up over your dial — just in case. We don't want to be recognized, because it would worry Claud Eustace Teal, and he's busy."
He was counting the breaks in the hedges as he walked. He counted three, and stopped at the fourth. A gate that could have closed it stood open, and he turned his pocket flashlight on it cautiously. It was one of the weatherbeaten kind, and the words that had once been painted on it were practically indecipherable, but they looked vaguely as if they might once had stood for 'The Snuggery'.
Simon killed his torch after that brief glimpse. He dropped his cigarette and trod it out under his foot.
"We seem to have arrived," he said. "Try not to make too much noise, Hoppy, because maybe Hogsbotham isn't deaf."
He drifted on up the drive as if his shoes had been soled with cotton wool. Following behind him, Mr Uniatz's efforts to lighten his tread successfully reduced the total din of their advance to something less than would have been made by a small herd of buffalo; but Simon knew that the average citizen's sense of hearing is mercifully unselective. His own silent movements were more the result of habit than of any conscious care.
The drive curved around a dense mass of laurels, above which the symmetrical spires of cypress silhouetted against the dark sky concealed the house until it loomed suddenly in front of him as if it had risen from the ground. The angles of its roof-line cut a serrated pattern out of the gauzy backcloth of half-hearted stars hung behind it; the rest of the building below that angled line was merely a mass of solid blackness in which one or two knife edges of yellow light gleaming between drawn curtains seemed to be suspended disjointedly in space. But they came from ground-floor windows, and he concluded that Ebenezer Hogsbotham was at home.
He did not decide that Mr Hogsbotham was not only at home, but at home with visitors, until he nearly walked into a black closed car parked in the driveway. The car's lights were out, and he was so intent on trying to establish the topography of the lighted windows that the dull sheen of its coachwork barely caught his eye in time for him to check himself. He steered Hoppy round it, and wondered what sort of guests a man with the name and temperament of Ebenezer Hogsbotham would be likely to entertain.
And then, inside the house, a radio or gramophone began to play.
It occurred to Simon that he might have been unnecessarily pessimistic in suggesting that Mr Hogsbotham might not be deaf. From the muffled quality of the noise which reached him, it was obvious that the windows of the room in which the instrument was functioning were tightly closed; but even with that obstruction, the volume of sound which boomed out into the night was startling in its quantity. The opus under execution was the 'Ride of the Valkyries', which is admittedly not rated among the most ethereal melodies in the musical pharmacopoeia; but even so, it was being produced with a vim which inside the room itself must have been earsplitting. It roared out in a stunning fortissimo that made the Saint put his heels back on the ground and disdain even to moderate his voice.
"This is easy," he said. "We'll just batter the door down and walk in."
He was not quite as blatant as that, but very nearly. He was careful enough to circle the house to the back door; and whether he would actually have battered it down remained an unanswered question, for he had no need to use any violence on it at all. It opened when he touched the handle, and he stepped in as easily as he had entered the garden.
Perhaps it was at that point that he first realized that the unplanned embryo of his adventure was taking a twist which he had never expected of it. It was difficult to pin down the exact moment of mutation, because it gathered force from a series of shocks that superimposed themselves on him with a speed that made the separate phases of the change seem somewhat blurred. And the first two or three of those shocks chased each other into his consciousness directly that unlatched back door swung inwards under the pressure of his hand.
The very fact that the door opened so easily to his exploring touch may have been one of them; but he could take that in his stride. Many householders were inclined to be absentminded about the uses of locks and bolts. But the following blows were harder to swallow. The door opened to give him a clear view of the kitchen and that was when the rapid sequence of impacts began to make an impression on his powers of absorption.
To put it bluntly, which is about the only way anything of that kind could be put, the door opened to give him a full view of what appeared to be quite a personable young woman tied to a chair.
There was a subsidiary shock in the realization that she appeared to be personable. Without giving any thought to the subject, Simon had never expected Mr Hogsbotham to have a servant who was personable. He had automatically credited him with a housekeeper who had stringy mouse-coloured hair, a long nose inclined to redness, and a forbidding lipless mouth, a harridan in tightlaced corsets whose egregiously obvious virtue would suffice to strangle any gossip about Mr Hogsbotham's bachelor menage — Mr Hogsbotham had to be a bachelor, because it was not plausible that any woman, unless moved by a passion which a man of Mr Hogsbotham's desiccated sanctity could never hope to inspire, would consent to adopt a name like Mrs Hogsbotham. The girl in the chair appeared to be moderately young, moderately well-shaped, and moderately inoffensive to look at; although the dishcloth which was knotted across her mouth as a gag made the last quality a little difficult to estimate. Yet she wore a neat housemaid's uniform, and therefore she presumably belonged to Mr Hogsbotham's domestic staff.
That also could be assimilated — with a slightly greater effort. It was her predicament that finally overtaxed his swallowing reflexes. It was possible that there might be some self-abnegating soul in the British Isles who was willing to visit with Mr Hogsbotham; it was possible that Mr Hogsbotham might be deaf; it was possible that he might be careless about locking his back door; it was possible, even, that he might employ a servant who didn't look like the twin sister of a Gorgon; but if he left her tied up and gagged in the kitchen while he entertained his guests with ear-shattering excerpts from Wagner, there was something irregular going on under his sanctimonious roof which Simon Templar wanted to know more about.