He worked her slowly up a grade, never pounding her, and knew how to keep her to the curves on the sharp, treacherous descent down a mountain.

The wind was so strong that she feared getting to her feet, and crawled to the edge where she and Derec had made their first treacherous descent into the city of robots.

Kerrey led his men in the treacherous downward descent to the enemy's camp.

As with the first glacier, they had to unhitch the dogs from the sledges and slowly make the treacherous descent.

Behind lay the steep fields and the treacherous descent to Hodre; ahead impenetrable ten-foot high drifts that spilled across into the fringe of the forest.

A choreographed attack by Liberty Seguros climbers, and Heras' thrilling ride down a treacherous descent, finally won him the leader's jersey.

A treacherous descent, it had landslided out in various places, forcing the traveler to navigate thousand-foot drop-offs.

Roddy's dog moved right to the lip and even down to the first step on a rocky and treacherous descent.

She executed the treacherous chromatic descent at the end of the first movement.

Even before I began the treacherous descent I knew it was too late to help.