中文简介：

你有没有想过地下有什么？那里隐藏着一个迷人的世界。在这个令人兴奋的地球之旅中，孩子们可以掀开挡板，窥视洞口，寻找蚂蚁和兔子、管道和火车、化石甚至熔岩！

英文简介：

Have you ever wondered what's under the ground? A fascinating world lies hidden there. In an exciting journey into the Earth, young children can lift flaps and peep into holes to find ants and bunnies, pipes and trains, fossils and even lava!