How To Dig A Hole To The Other Side Of The World

Plot

Back cover text:What will you need to dig a hole to the other side of the world?What will you find along the way?A pail and shovel won't be enough...You'll need some help from a friend!"Youg diggers won't miss a thing on this 8,000-mile imaginary trip through the earth's interior layers - digging down, drilling through granite crust, then steering a drill-tipped, fire-proof submarine through fiery molten rock and glowing melted iron..." - Kirkus