After that, Carlie poured mucilage into all six shoes impartially until the bottle was empty, then took them back to their former positions in the dressing-room.

Finally, with careful forethought, he placed his own shoes in the pockets of his overcoat, and left the overcoat and his cap upon a chair near the outer door of the room.

Then he went quietly downstairs, having been absent from the festivities a little less than twelve minutes.

He had been energetic--only a boy could have accomplished so much in so short a time.

In fact, Carlie had been so busy that his forgetting to turn off the faucets in the bathroom is not at all surprising.
No one had noticed his absence.