Dr. Priestley nodded. “Yes, I guessed that was the motive,” he said in a matter of fact tone. “I took the trouble to look up the names of the jurymen, as soon as I remembered that it was while I was serving on that jury that I had met a man bearing the name of Copperdock. The others were Tovey, Colburn, Pargent, Martin, Goodwin, Thomas, Bailey, Underhill, Abbott and Hewlett.”

“Quite right, Thomas, Bailey, Underhill, Abbott and Hewlett were already dead when Dr. Morlandson was released. Their punishment has passed into other hands. Of the remaining seven, six have paid the penalty which they wished to inflict upon Dr. Morlandson. You only are left, Dr. Priestley.”