Four o'clock
The Very Young Man looked up the great , jagged precipice down which they had come , to where , far above , its edge against the strip of blue marked the surface of the ring . `` Some trip , '' he remarked . `` I would n't want to tackle that every day . '' `` Four o'clock , '' said the Doctor , `` the light up there looks just the same . I wonder what 's happened to George . '' Neither of his companions answered him . The Big Business Man lay stretched full length upon the ground near by , and the Very Young Man still stood looking up the precipice , lost in thought .