number?â
Ethel opened her bag, took out a slip of paper, and read: âWhitehall 4-31495.â
âWhitehall 4-31495,â Mannering echoed. âThatâs pretty near, if itâs not inside, the Loop.â
âThe Loop?â
âItâs easier to show you that, than explain it,â Mannering said. âItâs an area surrounded by Chicagoâs overhead railway. Did he say why he wanted you to go by train?â
âNo.â
âWas he in Chicago?â
âYes. He said he was staying there for a few days before flying to San Antonio.â
âWas he due in Chicago on his itinerary?â
âI donât think so â at least, not until after San Antonio. But Iâm not certain. Oh, what a fool I am!â
âIn what way?â inquired Mannering, lightly.
âFor not bringing a copy of the itinerary with me. Not that it would help if I had,â Ethel added ruefully. âMy bags are still in New York.â
âWeâll get them sent by air to Chicago,â Mannering interrupted. âThat wonât be difficult. Letâs go on. While you were in your New York hotel room, Enrico Ballas came to see you.â
She looked uneasy as she nodded.
âHe wanted to know why you were in America, whether you had brought anything for your father,â Mannering went on. âYou told him youâd come to see friends, that your father had no idea you were here, and you thought youâd persuaded Ballas that this was true. As soon as heâd gone, you yourself left carrying only the briefcase. Is that right?â
âYesâbut it didnât fool him.â
âNo,â Mannering agreed. âEnrico wouldnât work alone, and he would have had you followed. I havenât any doubt he realised you were on your way to Pennsylvania Station â or heading that way â and rushed after you. Do you know whatâs in the packet?â he added, almost casually.
âI havenât the faintest idea.â
âDid you know your father had any secret? Or any valuable documents?â
âNo.â
âHave you any idea at all what this is about?â
âNo,â Ethel answered. âI canât begin to imagine. Those malicious telephone calls he said he had didnât really surprise me â heâs always saying things which annoy people. He annoys me sometimes. Fanatics can be so blind, and he is a fanatic. Butâwell, Iâm completely in the dark over this. Didnât you say you looked in the package?â
âYes.â
âWhat was in it?â
âA box containing some lecture notes which in turn contained some microfilm.â
âMicrofilm! But I thoughtââ Ethel broke off.
âThat such stuff was only for spies,â Mannering said dryly. âThere are a thousand-and-one uses for it, practically all important. Your fatherâs film had been cut in strips, each strip packed close to the margin between each sheet of the notes. They couldnât be seen until I pulled the sheets apart. Did your father always prepare his lectures and have them typed out?â
âYesâheâMr. Mannering!â Alarm flared through Ethel.
âWhatâs the trouble?â asked Mannering.
âYou said: â did heâ.â
âDid I?â
âYes. In the past tense.â
âOh,â said Mannering, blankly; then he went on quickly: âYes, I did â but it was a slip of the tongue. I havenât the faintest reason to believe that anything serious has happened to your father. I told you the simple truth, Ethel. I came after Ballas because I wanted to get some jewels back from him. They were stolen a week ago from this client of mine, and I had good reason to believe that Ballas was the thief. It all fitted in very nicely, actually, because I was coming to America anyway.â
Ethel looked her âwhy?â
âThereâs to be a