What do you think of my story?

Not bad! I really like it. Just a thought: you might want to watch out for redundancies and typos. I have a lot of trouble with making my writing sound sap-free and not cheesy, and I think you handled that well. I loved the way you made the Indian grandfather explain the things he didn't know about the "Bluebacks". I would make some paragraph breaks in the story, however, for emphaisis and to give the kid a chance to respond to what s/he (I don't know which gender) is hearing. I think the story doesn't sound fake, I think it sounds really good. You have a talent!