The Mohawk tell Jamie, Claire and Ian about Otter Tooth (the previous owner of Claire’s stone). He appeared to know the future. He told the Mohawk of the future. He tried to convince them to war on the white man going so far as to scalp some nearby. He angered the elders who sent him away but he was always nearby ranting and raving. They thought him possessed and chased him for days until they caught up to him and killed him. They continued to hear his words even after taking his head and so buried his head far away, under a tree where Claire eventually found his skull and satchel with the opal inside.
Young Ian gives Claire and Jamie Otter Tooth or Robert Springer’s journal. In Springer’s journal he mentions others: Rains Hard, Strong Walker, Six Turtles and Talks with Spirits. It seems Otter Tooth went back too far.