My first task lay in renewing the organs of 378-J-493811-P and of Gor Hajus which had been injured by the wounds that had laid them low; the former requiring a new lung and the latter a new heart, his executioner having run him through with a short-sword. I hesitated to ask Ras Thavas’ permission to experiment on these subjects for fear of the possibility of arousing his suspicions, in which event he would probably have them destroyed; and so I was forced to accomplish my designs by subterfuge and stealth. To this end I made it a practice for weeks to carry my regular laboratory work far into the night, often requiring the services of various assistants that all might become accustomed to the sight of me at work at unusual hours. In my selection of these assistants I made it a point to choose two of the very spies that Ras Thavas had set to watching me. While it was true that they were no longer employed in this particular service, I had hopes that they would carry word of my activities to their master; and I was careful to see that they received from me the proper suggestions that would mould their report in language far from harmful to me. By the merest suggestion I carried to them the idea that I worked thus late purely for the love of the work itself and the tremendous interest in it that Ras Thavas had awakened within my mind. Some nights I worked with assistants and as often I did not, but always I was careful to assure myself that the following morning those in the office were made aware that I had labored far into the preceding night.