The two dwelt over the maps and plans until; Leroy and Jimmie came romping in to report that all was quiet at the machine, and that Mike was to remain on guard until midnight, when Jimmie was to relieve him.  Then Pedro went out in the city to listen to such talk of the strange airship as was floating about the streets.  He was back in a couple of hours with the information that the airship had not landed in the city, and that it had never been seen there before.