Help Earth's mightiest Heroes tackle the puzzles

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Mendell shows how Obama conquered Illinois politics and paved the way brick by brick for a galvanizing

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How to Spy on a Shark Latin Americans--Social conditions Help Earth's mightiest Heroes tackleSpend a day at sea tracking sharkswith the help of a robot! Join a team of marine biologists as they head out in their boat to study mako sharks! Simple, entertaining text and bright, accurate illustrations bring science and technology to life, and additional pages of facts about sharks follow the story. This book is bound to make a splash with young minds!