The Queen of the Savannah by Gustave Aimard

Among the persons present at the meeting, was one to whom we have not alluded, although he is destined to play an important part in this story, and who perhaps listened with more interest than anyone else to what was said. This person, to whom we have now to turn our attention, was Sotavento, the Indian majordomo, so liked by Don Anibal de Saldibar, and whose gloomy outline was described in our earlier chapters.

Sotavento had not altered; nearly a dozen years had passed over his head without leaving the slightest trace; his hair was still as black, his face as cold, and his person as upright. Indians have this peculiarity, that, whatever their age may be, they always seem young, and do not really begin to display any signs of decrepitude until they reach the last limits of old age.