The sailor looked about him hurriedly. So Lazar and Mareno were hiding Craig. If they would find him they must follow the automobile; but how?

“The man with him was Ensign Lazar,” O’Neil explained to the amazed captain. “If he recognizes me the game is up. How can we follow them?”

Captain Garcia was still more amazed at hearing this startling news. Why was Señor Mareno with Mr. Lazar? What part had Señor Mareno in the plot to convict his young friend, Midshipman Perry? And was he a friend of the man who had sold the machine guns back to the rebels?

“Come,” he cried much aroused, “there’s an automobile standing on the next corner, but I fear we can’t catch them; Señor Mareno’s machine is the fastest in the city.”

As luck would have it they found a waiting machine, and jumping in Captain Garcia hurriedly gave the order.

“Mariel road, quick,” he cried to the chauffeur.

In a minute they were speeding through the streets and out on the lonely road to Mariel.

The quarry was not in sight; had they turned off on one of the many cross streets? This was surely the direction they had taken.

They sped along, O’Neil pressing money into the hands of the chauffeur to open wider his throttle.

“There they are,” O’Neil whispered triumphantly as a dark object came in sight ahead. The pursuers were gaining slowly.