"Do you suppose she dropped a note or anything on that porch back there?" demanded Hugh suddenly.
"I didn't see her do anything like that," said Bob.
"Nor I. At any rate I guess the best thing we can do is to stick close to her."
"Yes, and we'd better keep closer too, now that we are coming to where the stores are. We'll lose track of her if we don't."
"Do you suppose any one will notice that we're disguised?"
"I hope not. There's usually a big crowd on the streets Saturday night though."
"We'll hope for luck," said Hugh earnestly.
They quickened their paces until they were scarcely more than seventy-five feet in back of Lena. There were many people passing them in both directions now, and apparently Lena was not as suspicious as she had been; she glanced behind her no more.
Presently they turned into the main street. The sidewalks were thronged with people and everything was lighted up brilliantly in the glare of arclights and shop windows. Lena was just ahead of the boys and it was not an easy task to follow her in the crowd.
Music sounded down the street. A troop of cavalry was approaching and every one lined the curb to see them pass. Lena stopped and the boys took their places directly behind her. Every trooper was mounted on a coal black horse, and they made a fine showing as they drew near; the crowd began to cheer and many waved small American flags that they were carrying. Women waved their handkerchiefs as the horsemen passed, and much to both Bob's and Hugh's surprise Lena waved her handkerchief and clapped her hands with the others.