(2007) Go on a journey to the centre of the earth and back with this brand new title in the ground-breaking “See Inside” series. This subject is perfect for the lift-the-flap treatment and the book uses embedded flaps to great effect to explain the world under our feet, from plants and animals to underground trains and pipes, right through to the earth’s core past gold mines, stalagmites and fossils. It contains over 50 flaps to lift.