Complex sentence: Nit-A-Nee took him into her arms and carried his body back to a place in the center of the valley where she laid the strong brave in his grave and built a mound of honor to commemorate his strength.
Split into simpler sentences: Nit-A-Nee took him into her arms and carried his body back to a place in the center of the valley. She laid the strong brave in his grave, and built a mound of honor to commemorate his strength.