“Then I’ll be working for the secret service too?” Dorothy could see that the girl was very much impressed with the idea.

“You will, Gretchen—that is, you are—under me. But don’t get too pepped up about it. The work we are on is serious and it is extremely dangerous into the bargain. I wouldn’t have brought you into it unless I had to. Right now I haven’t the slightest notion how you are going to be fitted into the picture. But I couldn’t have you going around, talking about how much Janet Jordan looks like Dorothy Dixon, could I? Doctor Winn and the Lawsons have no idea of either the resemblance or the relationship. If that came out and they got wind of it—well, there’s no telling what might happen.”

“Especially,” chimed in Gretchen, “after all the detective work you did in those three big cases over to New Canaan this summer and fall.”

“You’ve got it,” declared Dorothy, and sipped her coffee. “A robbery is being planned here, Gretchen, a robbery of some very valuable papers from Doctor Winn’s safe. The thieves will probably try to pull it off tonight. These papers, which have to do with an invention of the Doctor’s are worth a million dollars or more to any number of people. So you see the thieves are playing for big stakes, and I might as well tell you that they aren’t the kind that would let a thing like murder stop them. And now that you know the facts, are you willing to go on with it?”

Gretchen seemed horrified that Dorothy should doubt her. “Oh, Miss Jordan, I don’t want to get murdered any more than anybody else—but, I’m not afraid—honest I’m not!”

“I knew you were true blue,” smiled Dorothy. “So we’ll call it a deal, shall we?”

“You bet!” The two girls solemnly shook hands. “What do you want me to do first, Miss Jordan?” Gretchen asked eagerly.

“Move this tray onto the chair over there, please. Then while I’m taking a bath and dressing you might unpack Janet Jordan’s clothes. I’ll choose something to wear later.”

“Very good, Miss Jordan.” The little maid took the tray, then stopped short, her round blue eyes very serious. “But what about the secret service work?”

“Just carry on as usual for the present.” Dorothy slipped out of bed. “And remember—not a word to anyone about what I’ve told you—not even Mr. Tunbridge. I don’t know myself exactly what I’m to do yet. Mrs. Lawson expects me downstairs in about half an hour, so I’ve got to hustle. If I need your help later on, I’ll get word to you somehow.”