While the work of putting together one of the brigantines was progressing, a few of the natives approached the shore in canoes and demanded of the Spaniards their object in thus invading their country. Returning they made offers of peace, but as they denied having more than eleven canoes, the Spaniards suspected their design. It was believed that they wished to induce the Spaniards to accompany them to the island, a few at a time, where they could easily be despatched. The brigantine was soon afterward launched and as the Lacandones saw it bearing down upon them they took to flight.[XXI‑11] Many were captured, including the principal chief and the high priest. The houses and other defences of the island having been destroyed, a force was then despatched to pursue the savages, and to reduce the stronghold of the Puchutlas, which was also an island fortress, though its exact position cannot now be ascertained.[XXI‑12] [Sidenote: ILL-ADVISED EFFORTS.] Near the town of Topiltitepeq this force fell into an ambuscade, and a few of the Spaniards were wounded, but the savages were finally put to rout, and a large supply of provisions was found in the deserted town. Arriving at Puchutla they found the natives in readiness for defence. Preparations were immediately made for the attack, and a raft was built as the second brigantine had been abandoned in the woods, and the one used against the Lacandones had sunk in the lake. No sooner had the Spaniards started from shore than the Indians advanced in their canoes to meet them, and midway between the island and the bank there was a sharp encounter which resulted in the defeat and flight of the Puchutlas. The fortress was found to be deserted, the savages having taken the precaution of removing their families and property to a place of safety.[XXI‑13] No attempt was made to punish the natives or to occupy any portion of their territory, and the expedition returned to Guatemala about Christmas, bringing with them one hundred and fifty prisoners. In conjunction with the Spaniards, a large force of christianized Indians under the native governor of Vera Paz invaded the province of Ácala, administering a severe punishment, taking many captives, and hanging the principal accomplices in the murder of fathers Vico and Lopez.