"Burning Bridges Along the Susquehanna" by Paul Nelson, is a must-read fantasy novel about a teen girl, Lily, and her little autistic brother, Logan. Together, they travel back in time to the old logging days of Clinton County, Pennsylvania. There, with their friend, Iron Joe, they have amazing adventures and also face great danger.
This is a novel of the paranormal, fantasy, History, adventure and a little romance. It's a must-read for ages 15 and up. It's available @ Amazon and Kindle, and may also be ordered through bookstores.