be greatly repaid for the slight service I have rendered you. May the great Power above guide you safely through the conflict about to be waged between Scientific Thought and those wedded to the creeds of the churches—to the dogmatic teachings of every denomination and society on the face of the earth. “‘Your aider and abettor in all your scientific investigations in this life and those other lives we will live together in the future, yours, through all time, “‘MARRIET MOTUBLE.’ “A strange woman,” said Governor Lehumada, as he folded the letter and placed it within the envelope. “There may be much truth in her statements. We have received many warnings since nine o’clock this morning, about this same affair. I hope we may be able to avert it,” said Guillermo Gonzales. “It cannot be done,” came the emphatic prophecy of Julio Murillo. “So I beg of you to waste no time. Trouble is gathering thick and fast on every side. Let us prepare our disguise at once and hasten to the tomb and to Marriet Motuble.” The two men left the Governor to prepare a disguise, and Juan entered to assist him. CHAPTER X. A DAY OF CONUNDRUMS. In thirty minutes the Governor and his two scientific friends disguised as physicians, stepped into a private cab propelled by air. Julio Murillo gave directions to the motorman to take them through the streets slowly to the Mexican Annex. The cab was circular in form and around it extended a glass window which magnified everything seen through it from the interior of the cab, while from the street nothing in the interior of the cab could be seen. Governor Lehumada leaned back amongst the comfortable cushions, by the side of Señor Guillermo Gonzales, and engaged him in conversation, the coach gliding noiselessly through the street the while. Julio Murillo sat upon the high observation stool in the center of the circular cab, where he saw, through the window near the top of the cab, everything in the streets through which they passed. Occasionally he gave directions to the motorman, who was comfortably seated in the center of the top of the cab, through the speaking tube, to turn in this direction and that direction. Three-quarters of an hour had passed since they left the Governor’s mansion, and still they were winding in and out from one street to the other, and yet they seemed to be no nearer than they were at first to the Mexican Annex. The two men talked unceasingly and were not in the least disturbed by not reaching their destination. They had never known Julio to do an act without being able to give a good reason for it, and now they did not question his object in taking them through various streets, back and forth, instead of directly to the hotel. The cab came to a stop in front of a large drug store.