"Well, little girl, what are you doing here?"

Dorothy had safely reached the big post-office, which seemed to be the busiest place she had ever entered; busier even than the department stores on a "bargain day;" and she had timidly slipped into the quietest corner she could find, to wait a moment while the crowd thinned. Then she would present her note, that asked for father John's letter to be given her, and which was in his own handwriting, to make sure. But the crowd did not thin! Besides the swarms and swarms of postmen, wearing just such gray uniforms as her father's, there were so many men. All were hastening to or from the various windows which partitioned a big inner room from this bigger outside one and behind which were other men in uniform—all so busy, busy, busy!

"Why! I didn't dream there could ever be so many letter-carriers! and each one is so like father, that I'm all mixed up! I know I've got to go to one those windows, to give this letter and get the other one, but how will I ever get a chance to do it, between all those men?"

Then while Dorothy thus wondered, growing half-frightened, there had come that question, put in a familiar tone, and looking up she saw another gray-uniformed person whom she recognized as her father's friend. Once he had been to their house to dinner, and how glad she now was for that.

"Oh, Mr. Lathrop! How glad I am to see you! I've got to get a letter and I don't see how I'll ever have the chance. The people don't stop coming, not a minute."

"That's so, little girl—Beg pardon, but I forget your name, though I know you belong to John Chester."

"Dorothy it is, Mr. Lathrop. Could you—could you possibly spare time to help me?"

"Well, I reckon there's nobody in this office but would spare any amount of time to help one of John Chester's folks. I was just starting on my rounds—second delivery—heavy mail—but come along with me and I'll fix you out all right."

He turned, shifted his heavy pouch a little, and caught her hand. Then he threaded his way through the crowd with what seemed to his small companion a marvelous dexterity. It happened to be the "rush hour" of business, and at almost any other, Dorothy would not have found any difficulty in making her own way around, but there was also the confusion of a first visit. Presently, however, she found herself at the right window to secure the letter she sought, received it, and heard Mr. Lathrop say:

"There. That's all right. I reckon you can find your way out all safe, and I'm in a hurry. Please make my regards to your mother and tell her we've heard where John is and some of us are going to see him, first chance we get. Too bad such a thing should happen to him! Don't let anybody snatch that letter from you, and good-bye."