Don Estevan, without troubling his head concerning his friend's intentions, set about collecting the leaves of the creeper he had pointed out. By dint of exertion, a goodly number were soon heaped upon the ground. When Stoneheart deemed the quantity sufficient, he gathered them up in his zarapé, and returned to the spot where they had left their horses. Without further explanation, he began to pound the leaves on a flat stone he brought from the edge of the water. Don Estevan, taking great interest in the mysterious operation, occupied himself in collecting in a coui (or gourd) the juice which ran from the leaves as Stoneheart crushed them. The work lasted an hour, by which time the coui was filled to the brim with a greenish liquid.
"What are we to do now?" said Don Estevan, puzzled more and more.
"That is a delicate question, my friend," replied Stoneheart, with a laugh. "We must undress; then, with the point of the navaja, we will make longitudinal incisions in our breasts, our arms, thighs, and between the fingers and toes, just deep enough to cause blood to flow. Afterwards, we will carefully inject the liquid we have collected into these incisions. Have you sufficient courage to inoculate yourself with the mikaniajuice?"
"Certainly, Fernando, though the operation will be painful. But what good will it do us?"
"Only the least in the world! We shall be invulnerable. We shall be able to trample thousands of snakes under our feet; and their bites shall do us no more harm than the prick of a pin." Stoneheart said no more, but undressed himself, and coolly began to make incisions in his body. Don Estevan followed his example. After slicing themselves in this fashion, they rubbed the cuts with the juice of the creeper, leaving the liquid time to dry in before they resumed their dress.
"Well, that is done," said Stoneheart. "We need not keep our horses: the poor brutes would infallibly perish, for we cannot insure them from the serpents. We will leave them here, and pick them up when we return; only let us hobble them well, for fear they should stray too far."
The saddles were carefully hidden under some bushes, and the two hardy adventurers commenced their journey on foot, trailing their rifles, and holding in one hand a slender but tough twig of mesquite, to cut the reptiles in two which might dispute their passage. They marched rapidly, one behind the other, shaking the grasses on right and left with their rods, to dislodge the snakes, and following a track left by a numerous body of horsemen.
Suddenly they saw a dead body before them horribly swollen and putrified, over which they were obliged to step.
"Ah!" said Stoneheart, "Here lies a poor wretch, who probably did not know the uses of the guaco creeper."
Just at that moment, a sharp hissing was heard, and a beautiful little snake, about as thick as the little finger, and seven or eight inches long, crept from under the corpse, raised itself upon its tail, and, darting with wonderful rapidity, fixed itself on Stoneheart's right leg.