God send, at least, it might be Marius who rode thus, at such a breakneck pace.
But there was more than blankets in the buggy that came up at breakneck speed.
The illusion was that of plunging earthward at breakneck speed.
Straight down you go, no matter of how breakneck a character the declivity may be.
Along the Inca road the little party hurried at breakneck speed.