The self-luminous compass and level attached to each gun gave them their exact direction and elevation.

Glimmering watches marked the time, the dragging of the last few seconds.
The Master drew no weapon.

His mind, directing all, observing all, was not to be distracted by even so small a detail as any personal hand in the discharge of the lethal gas.
If he felt the strain of the final moment, on which hung vaster issues than mere life or death, he gave no indication of it.

His eyes remained fixed on the watch-dial at his wrist.

They were confident, those eyes.