From the #1 New York Times bestselling team Andrea Beaty and David Roberts—who created Ada Twist, Scientist and Iggy Peck, Architect—comes a spirited story full of adventure, friendship, and science ! New York Times bestseller! Now a Netflix Series! “Packs plenty of information into a high-flying adventure.” — School Library Journal “Adventure, humor, and smart, likable characters make for a winning chapter book.” — Kirkus Reviews In Ada Twist and the Perilous Pants, Ada must rely on her curious mind, her brave spirit, and her best pals, Rosie Revere and Iggy Peck, to solve a mystery in her own backyard. Ada Twist is full of questions. A scientist to her very core, Ada asks why again and again. One question always leads to another until she’s off on a journey of discovery! When Rosie Revere’s Uncle Ned gets carried away wearing his famous helium pants, it’s up to Ada and friends to chase him down. As Uncle Ned floats farther and farther away, Ada starts asking lots of How high can a balloon float? Is it possible for Uncle Ned to float into outer space? And what’s the best plan for getting him down? Ada Twist and the Perilous Pants is the second in a unique and exciting series of chapter books for children, parents, and teachers who want to make STEM (science, technology, engineering, and math) fun. Check out all the books in the Questioneers Series :