Tell me what to do." The man with the cut brow gripped Graham's arm.

"Clamber up the ladder," he whispered.

"Quick.

They will have heard--" Graham felt for the ladder with extended hands, put his foot on the lower rung, and, turning his head, saw over the shoulder of the nearest man, in the yellow flicker of the light, the first-comer astride over Howard and still working at the door.

Graham turned to the ladder again, and was thrust by his conductor and helped up by those above, and then he was standing on something hard and cold and slippery outside the ventilating funnel.
He shivered.