They swore they had kept vigilant watch, and must have seen an intruder.

Both the men inside were the colonel's personal servants, and he believed their honesty; but what of their vigilance?
Carr heard him sternly questioning them, on which he said: "Those chaps aren't to blame, colonel.

I didn't come in that way.
If you'll take a look behind the bed, you'll see another door.

They brought me in there.

I was rather queer and only half knew what was up." We looked and saw a door where he said.