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 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! This is a unique and exciting series of children’s chapter books for children, parents, and teachers who want to make STEM (Science, Technology, Engineering, and Math) fun. 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 a little 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 questions: 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? Collect the Whole Series: Rosie Revere and the Raucous Riveters: The Questioneers Book #1 Ada Twist and the Perilous Pantaloons: The Questioneers Book #2 Iggy Peck and the Mysterious Mansion: The Questioneers Book #3 Sofia Valdez and the Vanishing Vote: The Questioneers Book #4 Ada Twist and the Disappearing Dogs: The Questioneers Book #5 Aaron Slater and the Sneaky Snake: The Questioneers Book #6

Inspired by mathematician Ada Lovelace and physicist Marie Curie, this #1 bestseller from author Andrea Beaty and illustrator David Roberts champions STEM, girl power, and women scientists in a rollicking celebration of curiosity, the power of perseverance, and the importance of asking “Why?” Now a Netflix series! #1 New York Times Bestseller A Wall Street Journal Bestseller A USA Today Bestseller Ada Twist’s head is full of questions. Like her classmates Iggy and Rosie (stars of their own New York Times bestselling picture books Iggy Peck, Architect and Rosie Revere, Engineer), Ada has always been endlessly curious. Even when her fact-finding missions and elaborate scientific experiments don’t go as planned, Ada learns the value of thinking through problems and continuing to stay curious. Ada is an inquisitive second grader who was born to be a scientist. She possesses an unusual desire to question everything she encounters: a tick-tocking clock, a pointy-stemmed rose, the hairs in her dad’s nose, and so much more. Ada’s parents and her teacher, Miss Greer, have their hands full as the Ada’s science experiments wreak day-to-day havoc. On the first day of spring, Ada notices an unpleasant odor. She sets out to discover what might have caused it. Ada uses the scientific method in developing hypotheses in her smelly pursuit. The little girl demonstrates trial and error, while appreciating her family’s full support. In one experiment, she douses fragrances on her cat and attempts to place the frightened feline in the washing machine. For any parent who wants STEM (Science, Technology, Engineering, and Math) to be fun, this book is a source of inspiration that will get children excited about science, school, learning, and the value of asking “Why?” Check out all the books in the Questioneers Series: The Questioneers Picture Book Series: Iggy Peck, Architect | Rosie Revere, Engineer | Ada Twist, Scientist | Sofia Valdez, Future Prez | Aaron Slater, Illustrator | Lila Greer, Teacher of the Year The Questioneers Chapter Book Series: Rosie Revere and the Raucous Riveters | Ada Twist and the Perilous Pants | Iggy Peck and the Mysterious Mansion | Sofia Valdez and the Vanishing Vote | Ada Twist and the Disappearing Dogs | Aaron Slater and the Sneaky Snake Questioneers: The Why Files Series: Exploring Flight! | All About Plants! | The Science of Baking | Bug Bonanza! | Rockin’ Robots! Questioneers: Ada Twist, Scientist Series: Ghost Busted | Show Me the Bunny | Ada Twist, Scientist: Brainstorm Book | 5-Minute Ada Twist, Scientist Stories The Questioneers Big Project Book Series: Iggy Peck’s Big Project Book for Amazing Architects | Rosie Revere’s Big Project Book for Bold Engineers | Ada Twist’s Big Project Book for Stellar Scientists | Sofia Valdez’s Big Project Book for Awesome Activists | Aaron Slater’s Big Project Book for Astonishing Artists

Along the way, Ada Twist will help her fellow young scientists solve mysteries big and small and show how the powerful impact of scientific research is felt all around us. Do you ask questions? Is why your favorite word? Do you like to search for answers and conduct experiments? Then you’re a scientist, just like Ada Twist, and this book is for you! Here young scientists have the opportunity to explore all of Ada’s favorite sciences—from botany to astronomy to chemistry, and everything in between. They’ll create experiments, follow the scientific method, and learn to look more closely at the world around them. Track the phases of the moon Build an aquascope Grow plants in your own garden Watch decomposition at work Record weather changes Observe a chemical reaction Design a vehicle powered by renewable energy And much more! For any parent who wants STEM (Science, Technology, Engineering, and Math) to be fun for their girl or boy, this book is packed with experiments and activities designed to inspire children to be excited about science, school, and learning.

The New York Times–bestselling series continues with a haunted house whodunit that will take all of the Questioneers’ sleuthing skills to solve. Iggy Peck is an architect at his very core: When he’s not making houses out of food, his head is up in the clouds, dreaming of design. So he’s totally blown away when Ada Twist’s Aunt Bernice inherits an old house from ice-cream mogul Herbert Sherbert that is filled with countless rooms from all his favorite architectural periods. But something’s not quite right . . . Everyone says the house is haunted, and it seems that a number of priceless antiques—which were supposed to help Aunt Bernice pay for the house’s upkeep—have gone missing. If they can’t find those antiques, Aunt Bernice might lose the house forever. It will take all of Iggy’s knowledge of architecture and the help of the other Questioneers—Rosie Revere, Ada Twist, and Sofia Valdez—to solve the mystery and find the treasure!

A charming Easter adventure based on the Netflix show Ada Twist, Scientist It’s Easter! The eggs are decorated, the baskets are ready, and Mr. Twist’s Easter pants are looking fly, which means one thing: it’s time for the annual Twist Easter Egg Hunt, Ada’s favorite family tradition. And this year, her parents are letting Ada hide the eggs! But Arthur, her big brother, thinks the egg hunt is going to be too easy now that he’s eleven—so Ada has to do a test hiding to make sure it’s super hard or else Arthur will retire from the egg hunt forever! Ada, Rosie, and Iggy brainstorm about how to find the hardest hiding spot in the history of egg-hiding. A sweet and funny storybook about learning from your mistakes and accepting that sometimes you might fail, this is the most egg-cellent book for the Easter season. Based on the bestselling series and the new Netflix show Ada Twist, Scientist, this charming new storybook is perfect for fans new and old!

From the #1 New York Times bestselling team Andrea Beaty and David Roberts—who created Ada Twist, Scientist and Iggy Peck, Architect—comes Rosie Revere and the Raucous Riveters, a spirited story full of adventure, friendship, and science—and first in the Questioneers chapter book series. Watch Rosie Revere in the Netflix television series Ada Twist, Scientist! “Plenty of affection, creativity, and raucous older ladies to make readers smile.” ―Kirkus Reviews “[A] positive portrayal of diverse kids engaging in various arts and sciences.” ―Booklist Rosie Revere is no stranger to flops and fails, kerfuffles and catastrophes. After all, engineering is all about perseverance! But this time, Rosie has a really important project to tackle—one that feels much bigger than herself. Rosie’s beloved Aunt Rose and her friends, the Raucous Riveters—a group of fun-loving gals who built airplanes during World War II—need help inventing something new. And Rosie is just the engineer for the job! After one flop . . . then another . . . and another . . . Rosie starts to lose hope. But thanks to some help from her fellow Questioneers Iggy Peck and Ada Twist, Rosie gets the job done. And, along with the Riveters, Rosie rediscovers the meaning of home. Rosie Revere and the Raucous Riveters is the first 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: The Questioneers Picture Book Series: Iggy Peck, Architect | Rosie Revere, Engineer | Ada Twist, Scientist | Sofia Valdez, Future Prez | Aaron Slater, Illustrator | Lila Greer, Teacher of the Year The Questioneers Chapter Book Series: Rosie Revere and the Raucous Riveters | Ada Twist and the Perilous Pants | Iggy Peck and the Mysterious Mansion | Sofia Valdez and the Vanishing Vote | Ada Twist and the Disappearing Dogs | Aaron Slater and the Sneaky Snake Questioneers: The Why Files Series: Exploring Flight! | All About Plants! | The Science of Baking | Bug Bonanza! | Rockin’ Robots! Questioneers: Ada Twist, Scientist Series: Ghost Busted | Show Me the Bunny | Ada Twist, Scientist: Brainstorm Book | 5-Minute Ada Twist, Scientist Stories The Questioneers Big Project Book Series: Iggy Peck’s Big Project Book for Amazing Architects | Rosie Revere’s Big Project Book for Bold Engineers | Ada Twist’s Big Project Book for Stellar Scientists | Sofia Valdez’s Big Project Book for Awesome Activists | Aaron Slater’s Big Project Book for Astonishing Artists

A new collectible boxed set that includes five of the beloved New York Times bestselling Questioneers chapter books! Three cheers for the Questioneers! Celebrate science, perseverance, and creativity in this 5-book boxed set that includes Rosie Revere and the Raucous Riveters, Ada Twist and the Perilous Pants, Iggy Peck and the Mysterious Mansion, Sofia Valdez and the Vanishing Vote, and Ada Twist and the Disappearing Dogs Follow Iggy Peck, Rosie Revere, Ada Twist, Sofia Valdez, and Aaron Slater on all of their adventures! Add the picture books, chapter books, and activity books starring the Questioneers by Andrea Beaty and David Roberts to your family library today.