Does anyone know a free download ebook or free printable on Martin Luther King?

I have Martin Luther King stuff - but none of it "really cool" - we can watch the speech videos, read biographies off the internet, looked at maps, talked about Rosa Parks and Ruby Bridges - but I was wondering if there were any interesting kids books out there on Martin Luther King - or fiction books on his time that aren't too graphic - and if there's free ebooks or printable books that's even better! Anything for an 8 year old girl that likes to listen to chapter books like Nancy Drew, Babysitter Club, Animal Ark, Magic Tree House, Box Car Kids, etc? She didn't take much to the Dear America diary series. Maybe a book on a kids eye view of the times?