habían remontado
-they/you had overcome
Antecopretérito para el sujetoellos/ellas/ustedesdel verboremontar.

remontar

Se trató inútilmente de cazarlos, pero era tal la precipitación de nuestros tiradores, que, antes de darnos cuenta, los cuatro piratas habían remontado la cuesta y estaban ya sobre nosotros.
Several shots were fired; but such was the hurry of the marksmen that not one appears to have taken effect. In a moment, the four pirates had swarmed up the mound and were upon us.
Palabra del día
la canela