Peter and Grandpa make a little electric loco from an old mobility scooter and bits of wood and metal from around the farm. With the aid of Grandpa's furnace, scrap iron is heated until it is white hot and liquid, then moulded into wheels. With a bit of wiring and paint, the engine is ready to go, but for how long? A making adventure with a twist for Peter and his Grandpa. Lots of technical information with 12 Watercolours by John Wardle. Age 6 to 12 years.