"That's going back a long way to make a connection between cause and effect, Bert," said Harry, who could not help smiling at his companion's hopeless view of the situation.

They were silent again for a time. Not a sound broke the stillness of the night save the regular steps of the sentinel below them. Some light clouds scurried across the moon, shutting off for a time the flood of silver light and throwing a gray shadow over the street.

"Look," said Harry, suddenly. "Didn't you see a man creeping along there?"

"Where?" asked Bert, eagerly.

"In the deep shadow close in by the wall of that house."

"I can see no one," said Bert, after straining his eyes in an effort to penetrate the darkness.

"Watch," whispered Harry. "I know I saw some one creeping along as if he did not want to be seen."

"Even if you did, what does it signify?"

"Captain Dynamite would come that way," answered Harry, confidently.

Suddenly the clouds swept on and again the street was flooded with a radiance that made the shadows cast by the walls of the houses as black as the darkest night in contrast.