It is Siddle's _volte face_ that bothers me." "Um!" murmured Mr.Fowler.He was not an uneducated man, but _volte face_, correctly pronounced, was unfamiliar in his ears.
"The change was so marked," went on the detective.

"I gather that Siddle is a stickler for charity and fair dealing.

He didn't abandon the role, of course.

It was the sheer ingenuity of his method that caught my attention.

So I simply catalogue him for research." "Has Miss Martin promised to meet us ?" inquired the other, feeling that he was on the track of _volte face_.
"No.