“Not much to barricade with,” remarked Adrian and he piled up the chairs.

The work had hardly been completed when there was a knocking on the door.

The boys made no response.

“Open!” cried a voice, “in the name of the law, open the door!”

Still the boys made no reply; but they made ready to use their weapons if necessity demanded.

Then came blows upon the door, evidently from an ax, and in a moment the lock was shattered.

“It’s time to give them warning,” said Donald. “Fire through the first opening they make.”

The very next blow made the opening desired and three shots rang out. They were followed by screams from the street and the hammering ceased.

“They’ve found out that there is some one here,

anyway,” said Billie. “I wonder what they’ll do next?”