“Had I craved that reward so much I could have turned you over to the dwar of Vobis Kan’s ship when he boarded us,” said Bal Zak.

“You did not know we were aboard the Vosar,” I reminded him.

“Ah, but I did.”

Gor Hajus snorted his disbelief.

“How then,” Bal Zak reminded us, “was I able to be ready upon this very spot when you emerged from your hiding place? Yes, I knew that you were aboard.”

“But how?” demanded Dar Tarus.

“It is immaterial,” replied Bal Zak, “but to satisfy your natural curiosity I will tell you that I have quarters in a small room in the Tower of Thavas, my windows overlook the roof and the hangar. My long life spent aboard fliers has made me very sensitive to every sound of a ship—motors changing their speed will awaken me in the dead of night, as quickly as will their starting or their stopping. I was awakened by the starting of the motors of the Pinsar; I saw three of you upon the roof and the fourth drop from the deck of the flier as she started and my judgment told me that the ship was being sent out unmanned for some reason of which I had no knowledge. It was too late for me to prevent the act and so I waited in silence to learn what would follow. I saw you hasten into the hangar and I heard Ras Thavas’ hail and your reply, and then I saw you board the Vosar. Immediately I descended to the roof and ran noiselessly to the hangar, apprehending that you intended making away with this ship; but there was no one about the controls; and from a tiny port in the control room, through which one has a view of the main cabin, I saw you enter the closet. I was at once convinced that your only purpose was to stow away for Toonol and consequently, aside from keeping an eye upon your hiding place, I went about my business as usual.”

“And you did not advise Ras Thavas?” I asked.

“I advised no one,” he replied. “Years ago I learned to mind my own business, to see all, to hear all and to tell nothing unless it profited me to do so.”

“But you said that the reward is high for our apprehension,” Gor Hajus reminded him. “Would it not be profitable to collect it?”