“Gee!” cried the boy. “Are they goin’ to blow that up, too?”
“They appear to be thinking of it,” was the reply. “And there on the margin of the sheets, of each of the sheets, is a date line—Saturday, April 15th. This is the 13th.”
“Is that the date set for the explosion?” asked the boy, with wide-open eyes.
“I don’t know,” was the reply, “but it seems to me that we ought to get out of here and communicate with Lieutenant Gordon, and also with Mr. Shaw, in New York. The date marked here may be the one set for action.”
They started at once for the door, Ned taking the sheets with him and hoping to pass the guard without being seen. As they moved forward, however, they heard voices, and then a square of light told them that the door which they had left closed had been opened, and that three men were entering.
“If they turn on the light now,” Jimmie whispered in Ned’s ear, “there’ll be somethin’ doin’ here.”
The newcomers did not light the flaring torches with which the room was usually illuminated, but, closing the door, sat down near the forge.
“I think,” Ned whispered, drawing Jimmie toward the door, “that the fate of the Gatun dam and the Daily Planet building depends on our getting out of here. Move carefully.”