"Half a minute, Sinclair," I said, "who did you say was under the Dog's thumb?"
"Demonio."
"Thanks. I was mixed in the thumbs. Go on."
"Well, just when things are like this...."
"Like what?"
"Like I said."
"All right."
"Who should turn up and thwart the whole scheme, but this Signorina Tarara in her domino...."
"Hully Gee!" I said, "you make my head ache. What the deuce does she come in her domino for?"
"Why, to thwart it."