He was at the foot of the ladder at the moment Hang Chang grappled Oscar and disappeared with the young captain.
"Who's over?" came from Andy, as he rushed up.
"The cap'n!" went on Marney. "The Chink dragged him over! He had the cap'n by the throat!"
Andy waited to hear no more, but bound up the ladder two steps at a time.
All he could see was a slight disturbance in the water, where a few bubbles were coming to the surface.
With Andy to think was to act, for he felt that Oscar was in a dangerous situation.
With one leap he was down at the foot of the ladder again and calling to George Dross.
"Watch for us! I am after Oscar!" he shouted, and then caught a knife which was in Marney's belt.
Then he went to the deck again and taking a long breath, plunged into the ocean, blade in hand.
In the meantime Oscar was having a bitter struggle with the madman, for such Hang Chang had become.