When the Earth supply ship set down upon prison planet Number Seven last week, a curious state of affairs was found: the prisoners below mining the ore as usual, the overseer dead, and every indication of some stark drama having taken place. In the study of the overseer's house one man was found dead, apparently by his own hand, and beside him on the desk was a hastily scribbled document which is herewith published. We hated Marnick. Because he was an Earthman and because he laughed, we hated hi