"This is a good time to give you fellows a lesson in who's who aboard the Grampus," said Matt. "Don Ramon, you did a rascally thing when you hired these men to take you south in direct defiance of my orders."
"What of it?" The don shrugged his shoulders. "We'll soon be at the mouth of the Izaral——"
"We are not going to the Izaral River," cut in Matt. "We are going back to Belize."
"We are not going back to Belize until we finish our work in the Izaral," was the insolent response.
"No?" returned Matt coolly. "We'll see. Gaines?" he called.
"Aye, aye, sir," answered Gaines, keeping his eyes on the periscope.
"Put about!"
Gaines made no move to shift the wheel.
"You heard what I said, Gaines?" went on Matt, his voice pitched low but carrying an emphasis that lifted it above the hum of the motor.