Titles In The Set:1. Rosie Revere and the Raucous Riveters2. Ada Twist and the Perilous Pantaloons3. Iggy Peck and the Mysterious Mansion4. Sofia Valdez and the Vanishing VoteDescription:Rosie Revere and the Raucous RivetersRosie 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, she rediscovers the meaning of home.Ada Twist and the Perilous PantaloonsAda 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 pantaloons, 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?In this new chapter-book adventure, 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.Iggy Peck and the Mysterious MansionIggy 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!Sofia Valdez and the Vanishing VoteMiss Lila Greer announces it's time for Grade Two to get a class pet, and she wants the kids to participate in choosing which one. After all, they will all have to share the responsibility of caring for it. The class narrows it down to two options: Team Turtle and Team Bird. Sofia is named Election Commissioner, in charge of overseeing a fair and honest election between the two teams. There's a class-wide campaign, complete with posters, articles, and speeches. Then it's time for the election! But when the votes are counted, there's a tie, and one vote is missing. How will the class break the tie? And what happened to the vanishing vote? It's up to Sofia Valdez and the Questioneers to restore democracy!