"Mr. Jones!" he said, in the tone of a school-boy detected in some flagrant mischief.
Erik turned and saw Tudor Brown coming around a neighboring hummock, where until this moment he had been hidden from their sight.
The exclamation of the Irishman confirmed the suspicion which during the last hour had presented itself to his mind.
Mr. Jones and Tudor Brown were one and the same person.
He had hardly time to make this reflection before two shots were heard.
Tudor Brown raised his gun and shot Patrick O'Donoghan through the heart, who fell backward.
Then before he had time to lower his rifle, Tudor Brown received a bullet in his forehead, and fell forward on his face.
"I did well to come back when I saw suspicious footprints in the snow," said Mr. Hersebom, coming forward, his gun still smoking in his hands.
CHAPTER XX.
THE END OF THE VOYAGE.