Only, on the other hand, they were earlier than usual.

They would not be so careful to go quietly; I was likely to be still awake." "Exactly," said Chayne.
For in the probability that Sylvia would be still awake, would hear the violent words of Hine, and would therefore be an available witness afterward, Chayne found the reason both of the loudness of Garratt Skinner's tones and his early retirement for the night.
"Did you hear what was said?
Can you repeat the words ?" he asked.
"Yes.

My father was keeping something from Mr.Hine which he wanted.

I have no doubt it was the cocaine," and she repeated the words.
"Yes," said Chayne.

"Yes," in the tone of one who is satisfied.