"Is it an attack?"
"The brigands?"
ut it was Wilks and Haljan in a fight out there on the cliff. The men crowded at the bulls'-eye windows.
And over all the confusion the alarm siren, with no one thinking to shut it off, was screaming with its electrical voice.
Grantline, stricken for that moment of inactivity, stood gazing. One of the figures broke away from the other, bounded up to the summit from the stair-platform to which they had fallen. The other followed. They locked together, swaying at the brink. For an instant it seemed to Grantline that they would go over; then they surged back, momentarily out of sight.
Grantline found his wits. "Stop them! I'll go out to stop them! What fools!"
He was hastily donning one of the Erentz suits which stood at the lock entrance. "Shut off that siren, Franck!"
Within a minute Grantline was ready. The duty-man called from the window: