"We shall follow your suggestion."

The two detectives started for the door, then paused.

Harry Brady, the boy, then said:

"Mr. Gibson has some doubts about our ability to work for the Custom House. Since he has flung defiance at us, we'll accept his challenge."

"How? growled the inspector, in ugly tones.

"Well, we'll meet you officers and the Collector on board the steamer Campania, of the Cunard line, in one hour, when she reaches her pier from Quarantine. If we don't show up more smugglers than you do, we'll give up this assignment."

"I'll go you!" eagerly exclaimed the jealous inspector.

"And I'll be there to see that you get fair play," grimly said the Collector.

The Bradys silently bowed and withdrew.

When they reached the street, Old King Brady laughed and said: