Ghostly Guide

The blue wool coat and the man's piercing eyes.
Is this a ghost from the past in a Union Army disguise?
The old fort was abandoned just it's shadows and us.
The sounds in the wind and the birds making a fuss.
On the edge was a tombstone marking the death of an infant child.
She'd been placed in the earth when the Buffalo ran wild.
I didn't even have to try.
I listened close and heard her cry.
High above a buzzard did glide.
I felt an Indian's arrow pierce my side.
I fell to the ground writhing in pain,
A US cavalry soldier called out my name.