"Please leave my room," once more said the captain.

Silk glared at him, and took a step forward as though he meant to try one last method for extorting the promise.
But Riddell stood his ground boldly, and the spirit of the bully faltered.
"You'll be sorry for it," snarled the latter.

Riddell said nothing, but waited patiently for him to go.

Seeing that nothing more was to be gained, and baffled on all points--even on the point where he made sure of having his enemy, Silk turned on his heel and went, slamming the door viciously behind him.
Riddell had rarely felt such a sense of relief as he experienced on being thus left to himself.
The suddenness of Silk's disclosure and the strange way in which it had been followed up had disconcerted him.

But now he had time to think calmly over the whole affair.
And two things seemed pretty clear.