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