"If I were a man you wouldn't dare say that!" I burst out. "When you talk about 'boasting,' or 'swaggering,' you must be judging him by yourself, for you are always doing both, he never. I believe Di likes him better than she does you, because he's a sort of popular hero with his flying, and you have nothing except your flirting and your fortune to recommend you to a girl."

If only I hadn't lost my head and thrown that taunt at him! I suppose I shall never know how much difference, or how little, this mistake of mine made. The instant the words were out I would have given anything to recall them. But it was too late. To apologize, or try to explain, would only do more harm. I ventured one sidelong glance at Major Vandyke's face after I had shot that bolt; and I quivered all over as I saw how the blood streamed darkly up to his forehead and swelled the veins at his temples. If I hadn't been afraid of him for Eagle, whose superior officer he was, I might have pitied him for the pain I had inflicted, under which he could keep silence only by biting his lip. I knew he was hating me violently, but I didn't care a rap. All I cared for just then was that he was hating Eagle March, and counting on paying him out in some way—I couldn't guess what.

"I must warn Eagle," I said to myself; and I could almost have kissed Tony, I was so glad to see him when he came back with the purple-covered book which nobody wanted.

Major Vandyke walked on with us to the motor, as if nothing had happened, but he was very silent, letting Tony and me talk undisturbed. It was only after he had spoken in a dry, mechanical way to Mrs. Dalziel, and the car was about to start, that I caught his eyes. There was a look in them as cold and deadly—or I imagined it—as deliberate murder.

I couldn't wait until next day to see Eagle and tell him—I hardly knew what, but something, to put him on his guard. He had said that he was engaged to lunch with a man named Donaldson at the Hotel Weldon, and it occurred to me that I might reach him there by telephone. At a little before one o'clock, I called up the hotel, and inquired if Captain March had arrived, to keep an appointment with Mr. Donaldson. The answer was "yes"; and when I had given my name, I was asked to hold the line for a few minutes, until Captain March should come to the telephone.

As I sat with the receiver at my ear, waiting, somebody began to talk in weird Spanish—or "Mex," as I'd heard it nicknamed in El Paso. The telephone and I had never been intimate friends at home, and I'd practically made its acquaintance since coming to America, so I scarcely realized why or how I was hearing that voice. "Is it some one trying to call to me?" I wondered stupidly. "Who knows here, except Eagle, that I speak Spanish?" Then, gradually, it dawned on me that I had "tapped" a conversation going on between persons with whom I had nothing to do. Their chatter could have no interest for me, even if it were excusable to listen, but I didn't drop the receiver lest I should miss Captain March, having been instructed to hold the line till he came. I couldn't help being vaguely pleased, too, that I had picked up enough Spanish in my home studies to understand what was being said. But suddenly my silly conceit was turned into horror. I was overhearing (that word which Major Vandyke had resented!) a plot between a pair of Mexican servants to poison the American families who employed them.

Two women were talking to each other, rapidly, earnestly, in tones of such agitation as they hurried on, that only for the first instant could I fancy a practical joke was being played. "You got the stuff safely? Yes? Then it has gone round among those who will do the work. Only a few have refused to come in. Those who eat will not die, but all will be sick. Then the men cannot fight our men if they come across the river. It is a very good plan to let us women help in our way. Yet, above everything, there must be no mistake! It is for the noon meal on Thursday, but only if we are sure of an attack for that night. We should be lost if we acted too soon. I am the one to pass the word. I am telling one after another to wait until it comes from me, by telephone or in some other way."

The words were rattled off so fast that I could catch no more than half, but I had seized enough to fill up the spaces for myself when the voices were cut off into silence, and Eagle March called, "Hello! Is that you, Peggy?"

"Yes," I said. "I had something important to say to you, but I've heard the most horrid talk going on over the telephone. I'm afraid it may mean a real danger for El Paso. I daren't tell you about it on the wire. Do let me see you! I must! Can you possibly take a taxi and rush over here now, or shall I go to you? I'll do that if you can't come to me."

"I'll come to you, of course," answered Eagle. "I'll excuse myself to Donaldson, and be with you in five minutes."