"Port the helm at once!" cried the Captain.
Then he sprang on to the bridge above the engine. By his orders one of the screws was stopped, and under the action of the other the Dolphin, veering with an extraordinary rapidity, avoided running foul of the frigate, and advanced like her to the entrance of the pass. It was now a question of speed.
James Playfair understood that in this lay his own safety, Miss Jenny's, her father's, and that of all his crew.
The frigate was considerably in advance of the Dolphin. It was evident from the volumes of black smoke issuing from her chimneys that she was getting up her steam. James Playfair was not the man to be left in the background.
"How are the engines?" cried he to the engineer.
"At the maximum speed," replied the latter; "the steam is escaping by all the valves."
"Fasten them down," ordered the Captain.
And his orders were executed at the risk of blowing up the ship.
The Dolphin again increased her speed; the pistons worked with frightful rapidity; the metal plates on which the engine was placed trembled under the terrific force of their blows. It was a sight to make the boldest shudder.
"More pressure!" cried James Playfair; "put on more pressure!"