Holmes: "Criminals? Plural?"
Lestrade: "Yes, there were two of them. We have many material evidences -- the blood on pane, right shoe, footmarks, the handkerchief..."
(Lestrade sees to Watson, who imperceptibly tries to do throw left shoe in the fire-place deeper by the poker.)
Holmes (with closed eyes): "Yeah... there are many evidences... Really..."
Lestrade: "Yeah, we almost catch theirs. The first fellow was a bit too active, but the second was caught by the under-gardener, and only got away after a struggle. And he left the shoe. He was a middle-sized, strongly built man—square jaw, mustache, a mask over his eyes."
Holmes: "That's rather vague, inspector. My, it might be a description of anyone. For example -- of Watson!"
Lestrade laughs and sees to Watson (it looks as if in a friendly manner).
Watson (serious face):"You are very kindly, inspector..."
Lestrade takes a good look more attentively: " It might be a description of Watson. Just like!"
Holmes wipes a sweat in his forehead.