Word was passed along, and the submarine craft darted over the ocean like a thing of life, keeping her deck above water and the trap-door wide open.
Oscar stood on the deck, pistol in hand, and beside him was Andy, also armed.
Soon the boat was almost under the bowsprit of the Chinese warship.
In the meantime, Martha Adams had come to the surface and was battling bravely to save herself from drowning.
She could swim, but the weight of her clothes was dragging her down.
"Keep up! We will save you!" cried Oscar.
"Help!" panted the girl. "Oh, save me from those horrible Chinamen!"
She struck out feebly, then disappeared from view.
"Take my pistols, Andy!" exclaimed Oscar, and threw down the weapons. The next instant he was over the side of the new Holland and swimming after Martha Adams. A dive and he had the beautiful maiden by the shoulder.
In the meantime the Chinese were bewildered and knew not what to do.