WhatWho did Uncas and Chingachgook believe made the footprint that was found while searching for the sisters?

Uncas and Chingachgook believed that the footprint they found while searching for the sisters belonged to a hostile group of Native Americans, specifically the Mohicans' enemies, the Narragansetts. Their interpretation of the footprint indicated that the sisters were likely in danger and had been captured or were being pursued. This finding heightened their urgency to locate and rescue the sisters from potential harm.