Three days passed, and of course during that time I heard much about the two girls and their singular disappearance.

At night, after work was done, and supper disposed of, Mrs. Ballou would send some one to the post-office. This duty had usually fallen to Miss Grace Ballou, or been chosen by her, but since the night when Nellie Ewing rode away from the door, never again to be seen, Mrs. Ballou had vetoed the evening canters that Grace so much loved, and so the post-office was attended to by Master Fred, the spoiled son and heir, aged thirteen, or by the "hired man."

On the evening of the third day of my service, I saddled one of the farm horses, and rode to the post-office to fetch the widow's mail, and great was my surprise when the grim postmistress presented me with a letter bearing my assumed name, Chris Ollern, and directed to the care of Mrs. Ballou.

Stowing away the widow's papers and letters in a capacious coat pocket, and my own letter in a smaller inner one, I rode thoughtfully homeward.

Who had written me? Not the men at the office; they were otherwise instructed; besides, the letter was a local one, bearing only the Groveland mark. Could it be that Farmer Rutger or 'Squire Ewing had forgotten all my instructions, and been insane enough to write me?

I hurriedly put my horse in his stable, unburdened my pocket of the widow's mail, and mounted to my room.

Locking my door and lighting a tallow candle—the widow objected to kerosene in sleeping rooms,—I opened my letter.

It was brief, very, containing only these words:

Chris Ollern—As you call yourself, unless you wish to disappear as effectually as did Nellie Ewing and Mamie Rutger, you will abandon your present pursuit. A word to the wise is sufficient.

Here was an astonisher, and here was also a clue. I was betrayed, or discovered. But the enemy had showed his hand. I had also made a discovery.

There was an enemy then; there had been foul play; and that enemy was still in the vicinity, as this letter proved.

It was a wily enemy too; the letter would betray nothing as regarded identity. It was printed; the letters were smooth and even, but perfectly characterless. It was a wily enemy, but not quite a wise one, as the sending of such a letter proved.

I did not leave my room again that night, but sat for hours thinking.

The next morning as I came from the barn-yard with a pail of milk, I encountered Miss Grace Ballou. She was feeding a brood of chickens, and seemed inclined to talk with me.

"Did you ever see such fine chicks, Chris?" she asked; "and they are only two weeks old."

I stopped, of course, to admire the chickens and express my admiration in broken English.

Suddenly she moved nearer me, and said, in a lower tone:

"Chris, did you bring any letters for any one except mother, last night?"

Promptly and unblushingly, yet somewhat surprised, I answered, "No."

Her eyes searched my face for a second, and then she said, falling back a step:

"Well, don't say anything about my asking you, Chris. I—I expected a letter."

That night I went to the post-office as usual, and the next morning Miss Grace repeated her question:

"Did you bring no letters for any one, positively?"

"No, there were only papers that night."

The third night after the receipt of my mysterious warning, however, there came a letter for Grace, which, a little to my surprise, was promptly handed over by her mother. Whether this was the expected missive or not it threw the young lady into unmistakable raptures.

Amy was coming! Amy Holmes; she would be at the station to-morrow, and Grace must go in the carriage to meet her.

Everybody was pleased except Fred Ballou. Mrs. Ballou heartily expressed her satisfaction, and announced that I should drive with Grace to "the station;" and Ann, the "help," became quite animated.

But Fred scornfully declined his mother's proposition, that he should ride to town with his sister and myself.

"Catch me," he sniffed, "for that stuck-up town girl; she was always putting ideas into Grace's head; and—he hated girls anyway. And hoped some one would just carry Amy Holmes off as they did Nellie Ewing."

Whereupon Grace turned, first pale, then scarlet, and lastly, flew at her brother and boxed his ears soundly.

The next day we went as per programme to the town, ten miles distant, where Miss Holmes would be. She had arrived before us, and was waiting.

She was a handsome, showy-looking girl, stylishly dressed, and very self-possessed in manner; evidently a girl who knew something of town life.

We found her beguiling the time of waiting by conversation with a well-dressed, handsome young fellow, who was evidently a prime favorite with both young ladies. He accompanied them while they went about making certain purchases that Mrs. Ballou had charged her daughter not to forget, and then he assisted them into the carriage, while I stowed away their bundles, shook their hands at parting, and stood gazing after them as the carriage rolled away, the very model of a young Don Juan, I thought.

I had hoped to gain something from my ten-mile drive with the two young ladies sitting behind me. I had learned that Miss Holmes was a friend of the Ewings, and also of Mamie Rutger, and as she had not been in the vicinity since these young ladies had vanished, what more natural than that she should talk very freely of their mysterious fate, and might not these girl friends know something, say something, that in my hands would prove a clue?

But I was disappointed; during the long drive the names of Nellie Ewing and Mamie Rutger never once passed their lips. Indeed, save for a few commonplaces, these two young ladies, who might be supposed to have so much to say to each other, never talked at all.

I had driven the steady old work horses in going for Miss Holmes, and so when night came, a feeling of humanity prompted me to buckle the saddle upon a young horse scarcely more than half broken, and set off upon his back for the post-office.

It was a little later than usual, and by the time I had accomplished the first half of my journey, stowed away the usual newspapers, and remounted my horse, it was fully dark; and I rode slowly through the gloom, thinking that Groveland was ambitious indeed to bring the mail every day from a railway ten miles distant, and wondering what it would be like to be the mail boy, and jog over that same monotonous twenty miles of fetching and carrying every day.

I had now reached a high hedge that assured me that my homeward journey was half accomplished, when, from an imaginary inland mail boy, I was suddenly transformed into an actual, crippled John Gilpin. From out the blackness of the hedge came a flash and a sharp report; my horse bounded under me, my left arm dropped helpless, and then I was being borne over the ground as if mounted upon a whirlwind!

It was useless to command, useless to strive with my single hand to curb the frightened beast. It was a miracle that I did not lose my seat, for at first I reeled, and feeling the flow of blood, feared a loss of consciousness. But that swift rush through the dewy evening air revived me, and rallied my scattered senses.

As we dashed on, I realized that my life had been attempted, and that the would-be assassin, the abductor or destroyer of the two missing girls, had been very near me; that but for the unruly beast I rode I might perhaps have returned his little compliment; at least have found some trace of him.

My horse kept his mad pace until he had reached his own barn-yard gate, and then he stopped so suddenly as to very nearly unseat me.

I quickly decided upon my course of action, and now, dismounting and merely leading my horse into the inclosure, I went straight to the house. I knew where to find Mrs. Ballou at that hour, and was pretty sure of finding her alone.

As I had anticipated, she was seated in her own room, where she invariably read her evening papers in solitude. I entered without ceremony, and much to her surprise.

But I was not mistaken in her; she uttered no loud exclamation, either of anger at my intrusion, or of fright at sight of my bleeding arm. She rose swiftly and came straight up to me.

Before she could ask a question, I motioned her to be silent, and closed the door carefully. After which, without any of my foreign accent, I said:

"Mrs. Ballou, a woman who can manage a great farm and coin money in the cattle trade, can surely keep a secret. Will you bind up my arm while I tell you mine?"

"What!" she exclaimed, starting slightly; "you are not a—"

"Not a Swede? No, madame," I replied; "I am a detective, and I have been shot to-night by the hand that has struck at the happiness of 'Squire Ewing and his neighbor."

The splendid woman comprehended the situation instantly.

"Sit there," she said, pointing to her own easy chair. "And don't talk any more now. I shall cut away your sleeve."

"Can you?" I asked, deprecatingly.

"Can I?" contemptuously; "I bleed my cattle."

I smiled a little in spite of myself; then—

"Consider me a colt, a heifer, anything," I said, resignedly. "But I feel as if I had been bled enough."

"I should think so," she replied, shortly. "Now be still; it's lucky that you came to me."

I thought so too, but obedient to her command, I "kept still."

She cut away coat and shirt sleeves; she brought from the kitchen tepid water and towels, and from her own especial closet, soft linen rags. She bathed, she stanched, she bandaged; it proved to be only a flesh wound, but a deep one.

"Now then," she commanded in her crisp way, when all was done, and I had been refreshed with a very large glass of wine, "tell me about this."

"First," I said, "your colt stands shivering yet, no doubt, and all dressed in saddle and bridle, loose in the stable-yard."

"Wait," she said, and hurried from the room.

In a few moments she came back.

"The colt is in his stable, and no harm done," she announced, sitting down opposite me. "How do you feel?"

"A little weak, that is all. Now, I will tell you all about it."

In the fewest words possible, I told my story, and ended by saying:

"Mrs. Ballou, you, as a woman, will not be watched or suspected; may I leave with you the task of telling 'Squire Ewing and Mr. Rutger what has happened to me?"

"You may," with decision.

"And I must get away from here before others know how much or little I am injured. Can your woman's wit help me? I want it given out that my arm is broken. Do you comprehend me?"

"Perfectly. Then no one here must see you, and—you should have that wound dressed by a good surgeon, I think. There is a train to the city to-morrow at seven. I will get up in the morning at three o'clock, make us a cup of coffee, harness the horses, and drive you to Sharon."

"You?" I exclaimed.

"Yes, I! Why not? It's the only way. And now, would you mind showing me that letter?"

I took it from my pocket-book and put it in her hand. She read it slowly, and then looked up.

"Why did you not heed this warning?" she asked.

"Because I wanted to find out what it meant."

"Well, you found out," sententiously. "Now, go to bed, but first let me help you remove that coat."

"Mrs. Ballou, you are a woman in a thousand," I exclaimed, as I rose to receive her assistance. "And I don't see how I can ever repay you. You are your own reliance."

As I spoke, the coat fell from my shoulder and my hand touched the weapon in my pistol pocket.

She saw it, too, and pointing to it, said:

"I have never owned a pistol, because I could not buy one without letting Fred know it; he is always with me in town. If you think I have earned it give me that."

"Gladly," I said, drawing out the small silver-mounted six-shooter; "it is loaded, every barrel. Can you use it?"

"Yes; I know how to use firearms."

"Then when you do use it, if ever, think of me." I laughed.

"I will," she said, quite soberly.

And little either of us dreamed how effectively she would use it one day.

The next morning, at half-past three, we drove out of the farm yard, en route for the railway station.

During our drive, we talked like two men, and when we parted at Sharon we were very good friends. I dropped her work-hardened hand reluctantly, and watched her drive away, thinking that she was the only really sensible woman I had ever known, and feeling half inclined to fall in love with her in spite of the fact that she was twenty-five years my senior.