Felix, the man who sits there, entered with me.

We were after the mine paper, and we got a copy of it.

He will tell you whether what I have said is the truth." "What Scoby says is the truth," Felix grunted.
The three prisoners had the earnestness of men telling the truth.

They admitted having visited the Cameron suite on the night of the tragedy, and told how and why they went there.

At least they gave good reasons for going, that of Don Miguel being legitimate, that of the others based on crime, for they admitted that they went there to steal a paper from the Tolford estate envelope, or, at least, to copy it.
The three admitted all that Nestor had discovered, and nothing else.
Was this because they knew that he was certain of his facts regarding the visits and the men who had made them?
Anyway, there was no dispute as to the details.