Half a Hero by Antonio Hope

Among the many tired but satisfied lovers of liberty who sought their houses that night, while an enthusiastic remnant was still parading the streets, illuminations yet shining from windows, and weary police treading their unending beats, was the doorkeeper, who had borne a banner in Company A of Procession 1. His friend the watchmaker came with him, to have a bit of supper and exchange congratulations and fulminations. Hardly, however, had the doorkeeper pledged the cause in a first draught when his wife broke in on his oration by handing him a letter, which she said a boy in a blue jersey had left for him about ten o'clock in the morning, just after he had started to join his company. The envelope was cheap and coarse; there was no direction outside. The doorkeeper opened it. It was addressed to no named person and it bore no signature. It was very brief, being confined to these simple words -- "You did not see me last night. Remember Rule 3."

The doorkeeper laid the letter down, with a hurried glance at his friend, whose face was buried in a mug. He knew the handwriting; he knew who it was that he had not seen; he remembered Rule 3, the rule that said -- "The only and inevitable penalty of treachery is death." He turned white and took a hasty gulp at his liquor.