killing pace

It was no time to spare the animals, whose rapid gait was increased until it became a killing pace.

And yet, in spite of the killing pace and the stony track, who but the sluggard or the dolt can hold aloof from the course?

"We are with you," cried Fred, striking his horse with his spurs, and forward we all went at a killing pace.

For another mile they kept up the killing pace and then Frank slowed up a little.

He broke cover from under some curiosities, and went away at a killing pace.