Twelve-year-old Theodore “Teddy” Roosevelt Fitzroy believes that Henry, the hippopotamus at the brand-new FunJungle, has been murdered. The zoo’s top brass claim the hippo went belly up the natural way, but Teddy and his feisty friend Summer McCraken have other ideas. Could the culprit be FunJungle’s animal-hating head of operations? Or is it FunJungle’s owner - Summer’s dad - a man who is much more concerned about money than animal welfare? The deeper Teddy and Summer dig, the more danger they’re in - because when it comes to hippo homicide, the truth can’t be caged!

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

Like his fellow lunarnauts - otherwise known as Moonies - living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon. And he's bored out of his mind. Kids aren't allowed on the lunar surface, meaning they're trapped inside the tiny moon base with next to nothing to occupy their time - and the only other kid Dash's age spends all his time hooked into virtual reality games.

Charlie Thorne is a genius. Charlie Thorne is a thief. Charlie Thorne isn’t old enough to drive. And now, it’s up to her to save the world.... Decades ago, Albert Einstein devised an equation that could benefit all life on earth - or destroy it. Fearing what would happen if the equation fell into the wrong hands, he hid it. But now, a diabolical group known as the Furies are closing in on its location. In desperation, a team of CIA agents drags Charlie into the hunt, needing her brilliance to find it first - even though this means placing her life in grave danger.

Charlie Thorne is a genius. Charlie Thorne is a renegade. Charlie Thorne isn’t going down without a fight. After tracking down incredible discoveries by Einstein and Darwin, Charlie is back. This time, the great ruler Cleopatra has left behind an extremely valuable and powerful treasure, its location encoded on an ancient stone tablet.

Teddy Fitzroy's back for another zoo mystery this time it's a koala caper in this action-packed follow-up to Belly Up, which Kirkus Reviews called great fun. School troublemaker Vance Jessup thinks Teddy Fitzroy's home at Fun Jungle, a state-of-the-art zoo and theme park, is the perfect place for a cruel prank. Vance bullies Teddy into his scheme, but the plan goes terribly awry. Teddy sneaks into the koala exhibit to hide out until the chaos dies down.

Teddy Fitzroy, his family, and some other FunJungle employees have been invited to visit a bison ranch just outside Yellowstone National Park that FunJungle’s owner, J.J. McCracken, is considering purchasing. But as usual, trouble isn’t far behind. The ranch’s endangered bison have been mysteriously disappearing. Then a massive local grizzly bear named Sasquatch breaks into the house, causing chaos. In the aftermath, Kandace McCracken discovers that her exceptionally expensive sapphire necklace has vanished.

Tim is just a peasant, but he dreams big. He wants more out of life than to grow up to be a woodsman like his father. Unfortunately, the only route to success in the kingdom of Wyld is to be born a prince. Still, Tim is determined. He is brave and clever and always tries to do the right thing—even though he rarely gets the credit for it.

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret MI5 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world.

Middle school is hard. Solving cases for the FBI is even harder. Doing both at the same time - well, that's just crazy. But that doesn't stop Florian Bates! Get to know the only kid on the FBI director's speed dial - and several international criminals' most wanted lists - in this adventurous series that School Library Journal says combines "elements of Alex Rider, James Bond, and Sherlock Holmes".

Eli Frieden lives in the most perfect town in the world: Serenity, New Mexico. In this idyllic place, every lawn is perfectly manicured, and everyone has a pool and a tree house. Honesty and integrity are valued above all else. The 30 kids who live there never lie--they know it's a short leap from that to the awful problems of other, less fortunate places. Then one day Eli bikes to the edge of the city limits, and something so crazy and unexpected happens, it changes everything.

Through a series of fascinating events, Homer's older brother has been illegally sold to the Union Army. It is up to Homer to find him and save him. Along the way, he encounters strange but real people of that era: two tricksters who steal his money, a snake-oil salesman, a hot-air balloonist, and finally, the Maine regiment who saved Little Round Top at the Battle of Gettysburg and won the war for the Union.

In the newest novel by beloved National Book Award finalist Lisa Graff, kids have turned the tables on their parents, and all the rules have been tossed out the window. But does Winnie have what it takes to hold her ground and keep everyone happy? This story, with a pitch-perfect middle grade voice and zany yet poignant situation, is perfect for fans of Sharon Creech, Louis Sachar, and Jack Gantos.

From number one New York Times best-selling author Nic Stone comes a middle-grade road-trip story through American race relations past and present, perfect for fans of Jacqueline Woodson and Jason Reynolds.

In order to heal after his mother's death, Sal learned how to meditate. But no one expected him to be able to take it further and "relax" things into existence. Turns out he can reach into time and space to retrieve things from other universes - even his mom! He has promised his dad and stepmom that he won't bring back his mother anymore (it causes marital tension), but sometimes, he can't help himself. Sal doesn't talk about his ability with anyone. But when he meets Gabi, the student council president and editor of the school paper, he realizes she is someone with whom he can work.

All her life, Cricket's mama has told her stories about a secret room painted by a mysterious artist. Now Mama's run off, and Cricket thinks the room might be the answer to getting her to come back. If it exists. And if she can find it. Cricket's only clue is a coin from a grown-over ghost town in the woods. So with her daddy's old guidebook and a coat full of snacks stolen from the Cash 'n' Carry, Cricket runs away to find the room.

In the newest novel by beloved National Book Award finalist Lisa Graff, kids have turned the tables on their parents, and all the rules have been tossed out the window. But does Winnie have what it takes to hold her ground and keep everyone happy? This story, with a pitch-perfect middle grade voice and zany yet poignant situation, is perfect for fans of Sharon Creech, Louis Sachar, and Jack Gantos.

If Austin picked a color to describe his life, it would be tumbleweed brown. Austin doesn't like standing out. He’s always the new kid, and there's no hiding his size. Plus, Austin has a secret: He struggles to read. Then Austin meets Bertie, who is razzmatazz. Everything about Bertie is bursting! But the best part of his newest school is the Safety Squad, with their laser lemon vests.

Otto and Sheed are the local sleuths in their zany Virginia town, masters of unraveling mischief using their unmatched powers of deduction. And as the summer winds down and the first day of school looms, the boys are craving just a little bit more time for fun, even as they bicker over what kind of fun they want to have. That is, until a mysterious man appears with a camera that literally freezes time.

Olive Cobin Zang has . . . issues. And they mostly aren’t her fault. (No, really!) Though she often slips under the radar, problems have a knack for finding her. So, imagine her doubts when she’s suddenly dropped off at the strangest boarding school ever: a former castle turned prison that's now a “reforming arts school”!

It’s the summer before fifth grade, and for Ferris Wilkey, it is a summer of sheer pandemonium: Her little sister, Pinky, has vowed to become an outlaw. Uncle Ted has left Aunt Shirley and, to Ferris’s mother’s chagrin, is holed up in the Wilkey basement to paint a history of the world. And Charisse, Ferris’s grandmother, has started seeing a ghost at the threshold of her room, which seems like an alarming omen given that she is also feeling unwell. But the ghost is not there to usher Charisse to the Great Beyond. Rather, she has other plans—wild, impractical, illuminating plans.

From number one New York Times best-selling author Nic Stone comes a middle-grade road-trip story through American race relations past and present, perfect for fans of Jacqueline Woodson and Jason Reynolds.

In order to heal after his mother's death, Sal learned how to meditate. But no one expected him to be able to take it further and "relax" things into existence. Turns out he can reach into time and space to retrieve things from other universes - even his mom! He has promised his dad and stepmom that he won't bring back his mother anymore (it causes marital tension), but sometimes, he can't help himself. Sal doesn't talk about his ability with anyone. But when he meets Gabi, the student council president and editor of the school paper, he realizes she is someone with whom he can work.

Charlie Thorne is a genius. Charlie Thorne is a thief. Charlie Thorne isn’t old enough to drive. And now, it’s up to her to save the world.... Decades ago, Albert Einstein devised an equation that could benefit all life on earth - or destroy it. Fearing what would happen if the equation fell into the wrong hands, he hid it. But now, a diabolical group known as the Furies are closing in on its location. In desperation, a team of CIA agents drags Charlie into the hunt, needing her brilliance to find it first - even though this means placing her life in grave danger.

There used to be an empty chair at the back of Mrs. Khan's classroom, but on the third Tuesday of the school year a new kid fills it: nine-year-old Ahmet, a Syrian refugee. The whole class is curious about this new boy - he doesn't seem to smile, and he doesn't talk much. But after learning that Ahmet fled a very real war and was separated from his family along the way, a determined group of his classmates bands together to concoct the greatest idea in the world - a magnificent plan to reunite Ahmet with his loved ones.

Tim is just a peasant, but he dreams big. He wants more out of life than to grow up to be a woodsman like his father. Unfortunately, the only route to success in the kingdom of Wyld is to be born a prince. Still, Tim is determined. He is brave and clever and always tries to do the right thing—even though he rarely gets the credit for it.

A timely, accessible, and beautifully written story exploring themes of food, friendship, family and what it means to belong, featuring sixth graders Sara, a Pakistani American, and Elizabeth, a White, Jewish girl taking a South Asian cooking class taught by Sara’s mom.

Like his fellow lunarnauts - otherwise known as Moonies - living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon. And he's bored out of his mind. Kids aren't allowed on the lunar surface, meaning they're trapped inside the tiny moon base with next to nothing to occupy their time - and the only other kid Dash's age spends all his time hooked into virtual reality games.

Willa, a young night-spirit of the Great Smoky Mountains, is her clan's best thief. She creeps into the homes of day-folk under cover of darkness and takes what they won't miss. It's dangerous work - the day-folk kill whatever they do not understand - but Willa will do anything to win the approval of the padaran, the charismatic leader of the Faeran people. When Willa's curiosity leaves her hurt and stranded in the day world, she calls upon an ancient, unbreakable bond to escape.

Teddy Fitzroy, his family, and some other FunJungle employees have been invited to visit a bison ranch just outside Yellowstone National Park that FunJungle’s owner, J.J. McCracken, is considering purchasing. But as usual, trouble isn’t far behind. The ranch’s endangered bison have been mysteriously disappearing. Then a massive local grizzly bear named Sasquatch breaks into the house, causing chaos. In the aftermath, Kandace McCracken discovers that her exceptionally expensive sapphire necklace has vanished.