"My life for hers" is the sublime if often foolish battle-cry that has so often resulted in whole-sale destruction.

Armand at this moment, when he fondly believed that he was making a bargain with the most astute, most unscrupulous spy this revolutionary Government had in its pay--Armand just then had absolutely forgotten his chief, his friends, the league of mercy and help to which he belonged.
Enthusiasm and the spirit of self-sacrifice were carrying him away.

He watched his enemy with glowing eyes as one who looks on the arbiter of his fate.
Chauvelin, without another word, beckoned to him to follow.

He led the way out of the lodge, then, turning sharply to his left, he reached the wide quadrangle with the covered passage running right round it, the same which de Batz had traversed two evenings ago when he went to visit Heron.
Armand, with a light heart and springy step, followed him as if he were going to a feast where he would meet Jeanne, where he would kneel at her feet, kiss her hands, and lead her triumphantly to freedom and to happiness..