had a stranglehold on her collarbone. I leave it to you what their destination was.â
âThe Aâ again?â asked Nikki in a small voice.
âNot the Aâ. I phoned Ernie at the desk. Harrison checked out Friday morning and he hasnât been back since. It was an academic call. Does it really matter what hotels they use?â Nikki did not reply. âHow did our heroine act when she got home?â
âSubdued.â
âHuh!â
âAnd ⦠very nice to Dirk.â
âOf course.â
âKept talking through dinner about the play sheâs taken an option on. And about this Ella Greenspan, the young housewife who wrote it.â
âShe also contrived to give the impression that she spent not only the morning but the entire afternoon with the precocious Mrs. Greenspan? Came directly home from Chelsea, and so on?â
âWell ⦠yes.â
âAnd whatâs on her agenda for tonight?â
âMarthaâs reading Dirk the play.â
âTouching. By the way, how was Dirk?â
âVery interested. They went right into the study after dinner. Thatâs how I was able to get away. Dirk asked me to stay and listen in, but Martha seemed to want him to herself, so ⦠Well, I said Iâd some things to buy at the drugstore. I suppose Marthaâs afraid of me these days.â
âIâm beginning,â remarked Ellery, ânot to care a great deal for your Martha Lawrence, Nikki.â
Nikki nibbled her lip.
âBut the situation does have its element of repulsive fascination. Itâs sort of like living in a keyhole.â Then Ellery blew an apologetic cloud of smoke and laid his pipe down. Nikki was looking so miserable that he pulled her over to him. âIâm sorry. I guess Iâm not used to this kind of case. Why are you getting up?â
âNo reason. I want a cigaret.â
Ellery lit one for her. She returned to her own chair.
âYou hate me.â
âI hate men!â
âNow, be reasonable, Nikki. It takes two to build a love nest. I hold no brief for Harrison, but Marthaâs not exactly jail bait. Sheâs old enough to be held responsible for her acts.â
âAll right ,â cried Nikki. âCanât we get back to the point? Do you want me to keep steaming open business envelopes?â
âI want you to come home. But if you wonâtâyes.â Ellery picked up his pipe again. âBy the way, todayâwe may say with some justificationâweâve progressed.â
âIn which direction?â asked Nikki bitterly.
âExactly. But thatâs not what I mean. The patternâs beginning to show.
âHarrison,â said Ellery, âhas apparently worked out a melodramatic but effective enough scheme for having his pigeon and eating it, too. Different meeting places each time, and then away to the dayâs nest. The only point of contact necessary under this layout is a time designation, place being expressed in code, and the whole luscious package enclosed in an innocuous business envelope. With Martha coming and going at all hours on legitimate business, and Dirk used to itâeven though he breaks out in occasional rashes of jealousy-itâs not a bad set-up at all.
âHarrisonâs really reduced the danger of discovery to a minimum.
âThe code itself,â continued Ellery to the wall, since Nikki was looking there, too, âpresents certain primitive points of interest. A comes first and turns out to represent the Aâ Hotel. B comes second and we find it indicates Bowery Follies. We may infer, then, that the next code letter will probably be C , and that C will stand for Carnegie Hall, or Coney Island, or somewhere in Central Park; that D will follow C and designate the Daily News building or Dannyâs Hideaway; and so on. What Harrison will do when he exhausts the alphabet, assuming he can get away with it that