It's likely you're referring to the historical events surrounding the Battle of Fort William Henry in 1757, which is depicted in James Fenimore Cooper's novel "The Last of the Mohicans."
In the novel, the Indian guide who assists the main characters (including the sisters Cora and Alice Munro) is Uncas, a young Mohican warrior.
However, it's important to note that:
* The novel is a work of fiction. While it draws inspiration from historical events, it takes significant liberties with them.
* The specific role of Indian guides during the Battle of Fort William Henry was likely far more varied. It's unlikely that a single guide would have been responsible for a whole traveling party.
If you're interested in learning more about the historical context of the battle and the role of Indigenous people in this period, I recommend researching further and reading primary sources.