He was there on the night of the murder, too.

For the rest, he is alone, shut off from the world.
Without knowing it, he's going to fall into deep waters to-day, and he'll emit sparks, or I'm a Chinaman....

I'll leave you here.

Good-by! See you on Tuesday, after lunch." The superintendent drove on alone.

He pondered the Steynholme affair in all its bearings, but mostly did he weigh up Winter and Furneaux.