What impulse urged me on, except the blind impulse of hurry and bewilderment, I can't say.

I acted mechanically, under the influence of the vague inexplicable fear which the man's extraordinary parting words had aroused in me, without stopping to analyze my own sensations--almost without knowing what I was about.

In three minutes from the time when the stranger had closed my door the clerk had started for the bank, and I was alone again in my room, with my hands as cold as ice and my head all in a whirl.
I did not recover my control over myself until the clerk came back with the notes in his hand.

He had just got to the bank in the nick of time.
As the cash for my draft was handed to him over the counter, the clock struck five, and he heard the order given to close the doors.
When I had counted the bank-notes and had locked them up in the safe, my better sense seemed to come back to me on a sudden.

Never have I reproached myself before or since as I reproached myself at that moment.
What sort of return had I made for Mr.Fauntleroy's fatherly kindness to me?
I had insulted him by the meanest, the grossest distrust of the honor and the credit of his house, and that on the word of an absolute stranger, of a vagabond, if ever there was one yet.