only a couple of minutes. When he came back, Gamadge said: âHeâll be in the office. When Iâve seen him Iâll call you. Do you think you could send the note around to Mr. Fenway afterwards by hand?â
âOf course; but you seem to be in a dreadful hurry.â
âI am; and Iâm more grateful to you than I can everââ
Miss Vauregard would not listen. âItâs nothing, nothing at all. Good gracious Heavens, can it be three oâclock?â
âWe didnât finish our cocktails,â said Clara, âtill after two.â
âSo we didnât. I must run.â
Half an hour later Harold strolled into the library.
âI hung around Number 24 from two-thirty on,â he said, âbut nobody threw anything out of a window.â
âThe postman doesnât call on Saturday afternoon. Of course there was no paper ball.â
âThe old man came around at three-fifteen and went over the premises with a microscope; picked up everything in sight, and dusted snow off the steps and sidewalk. Snow kept on coming down, so he finally gave it up. The paper ball didnât come out of any of the basement windows, theyâre icebound; those on the front, I mean. The ones on the avenue are clear, and one was partly open; kitchen, I suppose. I donât think the paper was thrown from the top story, it wouldnât have cleared the roof of the bay window without falling outside the railings. It came from the middle bay window on the second or third floor.â
Clara said: âAlden Fenway didnât throw it out; nobody with a six- or seven-year-old brain made up that message.â
âSomebody might get him to throw it out for them,â suggested Harold. Then he stared at her. âDo you mean heâs a child of six or seven?â
âHeâs twenty-five; mentally retarded,â said Gamadge.
Harold asked, after a pause: âCould he be trusted to throw a message out of a window without letting anybody see him do it?â
âCould be, perhaps; I donât know. Wouldnât be, if discovery of the message meant serious consequences to the sender.â
Harold frowned. âWe donât know how crazy he is. He may not be as crazy as they think. Suppose Mr. Schenck is right, and he has lucid spells, and is trying to get some information to you while the spell lasts?â
âAlden Fenway was pronounced mentally incurable when he was four years old, by a great authority on brain disease. His mind developed a little, but it could never develop into a mature mind. He wouldnât have lucid spells; heâd always be on the same low level of intelligence, if he didnât eventually sink lower.â
âWhat do you think of this, then? At three-five a young fellow came down the left-hand stepsâitâs a double flightâand hailed a cab; big light-haired feller, quite handsome, stoops a little. Just as the cab came along to the curb he crumpled up a piece of paper and threw it away.â
Claraâs voice was almost a shriek: âThrew away a piece of paper?â
Harold continued stolidly: âWhite paper. Then he turned and looked around at another young feller who came out of the house and ran down the steps. Thin guy, pale, black hair, homely face, old belted mackintosh. This feller picked up the paper, looked at it, and went to the corner rubbish basket and chucked it in. Then he came back and took the big teller by the arm; helped him into the cab.â
âHarold,â gasped Clara, âdidnât you get that piece of paper out of that rubbish basket?â
Harold produced a crushed scrap. âHere it is.â
Clara seized and unfolded it. âWell,â she said, âwe know one thing; Alden Fenway can play tit-tat-toe.â
Gamadge looked at the untidy squares and the noughts and crosses. He said: âPerhaps he had help, perhaps he always gets beaten. But if those two young