The Pearl of the Andes by Gustave Aimard

As Trangoil-Lanec had predicted, Louis recovered from the effects of his wounds with surprising rapidity. Whether it was owing to his ardent desire to commence his researches, or to the goodness of his condition, we will not say; but on the eve of the day fixed for the departure he was quite on the alert, and told Don Tadeo he was ready to start whenever he pleased.

He was the more anxious to depart in that Valentine, his dog Caesar, and Trangoil-Lanec had been absent three days, and no tidings had been received. Curumilla had not come back. All these circumstances augmented in an enormous degree the impatience of the count; whilst, on his part, Don Tadeo was not much more easy. The poor father shuddered at the idea of the suffering to which his child was exposed.