Secret of the Green Engine (Thomas & Friends) (Step into Reading)

Something strange is happening at the Blue Mountain Quarry, and Thomas the Tank Engine is digging for answers! Little boys ages 3-6 will thrill to this Step 2 reader adventure based on the newest Thomas & Friends direct-to-DVD movie, Blue Mountain Mystery. "Who is that mysterious little green engine? Can Thomas catch him and learn his secret?"--Page 4 of cover Who is that mysterious little green engine? Can Thomas catch him and learn his secret?--Back cover