Below the city it's dark. You can't see anything, but there's lots going on Thanks to a press-out flashlight made of cardstock, you will be able to light up the dark pages of this book, one detail at a time. It's like magic Explore the hidden world below the city streets. Pipes and cables bring us gas, water, and electricity. A man-made river takes all our waste away. There are parking lots and underground trains and hidden treasures to uncover. This title forms part of the My First Discoveries series, a unique collection of beautifully illustrated information books for children aged 4 to 7 that aims to awaken children's interest in the wonders of the natural, physical and human world around them. There are 6 transparent overlay pages, which reveal hidden surprises, link ideas, and show how things evolve
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