Peter's Railway and the Forgotten Engine

Book 3. Peter and Grandpa extend their farm railway to Yockletts Village for Grandma to do her shopping. They hold the Great Train Race, but who will win? They also find a forgotten engine, hidden in a barn, which they put back to work. 96 pages with 14 pages of simply explained technical diagrams and 30 watercolour pictures. Age 6 to 12 year