She looked a little frightened.

Kenny instantly called her attention to a gap in the range of hills to the west.
"Like the Devil's Bit in Ireland," he said.

"There the devil, poor lad, bit a chunk out of a mountain and not liking the morsel over well, treated it as you and I would treat a cherry pit." Joan laughed.
"True." said Kenny, "every word of it.

I myself have seen the chunk he threw away.

Tis the Rock of Cashel.