"So I believe," rejoined Entwistle tersely. "Well, I'll accept your offer with pleasure. Now for the next hill. It's a regular brute, even for this part of the world. When a fellow is past forty he's not so good at this sort of work as he was. One has to admit the fact however much one tries to stifle the discovery. I used to pride myself on being a runner, and it came as a nasty shock when my fifteen-year-old son beat me in a 440 sprint--not by so very much, though," he added in defence of his bygone prowess.
"The third milestone," announced Peter pointing to a weatherbeaten slab just visible in the gloom.
"Yes, and the highest part of the road," added Entwistle. "It is about----".
He stopped abruptly. Away to the southward a vivid flash illuminated the sky, followed by three more in q
