Then suddenly came a break.
"The basin," said the Secret Service man.
"I think not," replied Old King Brady. "I think it is only the Islais Creek Channel. Stop the boat, Harry. We will lie off here for a few minutes. Perhaps we are banking too much on these hop smugglers running into the basin. It may be one of the warehouses on the channel here after all."
Harry stopped the launch accordingly.
The ebb tide took them back and the fog closed in on the Islais Channel.
The boat ran against a wharf and the movement was stopped.
"Shall I pull up, governor?" inquired Young King Brady.
"No. We will rest as we are," said the old detective. "Quiet, now. Let us listen. I shall not remain long idle here."
"It isn't the least use," growled the Secret Service man. "There won't be nothing doing to-night."
Old King Brady made no reply.