Mysteries

Charlie searches for Isaac Newton's secret treasure across Europe and Australia....

Stanley Yelnats is under a curse. A curse that began with his no-good-dirty-rotten-pig-stealing-great-great-grandfather and has since followed generations of Yelnatses. Now Stanley has been unjustly sent to a boys' detention center, Camp Green Lake....

Three complete stories in one collection! This volume includes The Boxcar Children, Surprise Island, and The Yellow House Mystery....

Mika is not your average twelve-year-old—and she’s about to prove it....

A bizarre chain of events begins when 16 unlikely people gather for the reading of Samuel W. Westing's will....

Can an undercover nerd become a superstar agent? Ben Ripley sure hopes so - and his life may depend on it....

Ben Ripley is recruited for a top secret mission to bring down his nemesis, Murray Hill, once and for all. But when things go horribly wrong, Ben ends up lost in an extremely dangerous wilderness with Murray—and confronting a new, devious enemy—with none of his friends to help him.

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....

One warm night four children stood in front of a bakery. No one knew them. No one knew where they had come from. Henry, Jessie, Violet, and Benny are orphans. Can they find a home where they can stay together as a family?....

In the eleventh book in the New York Times bestselling Spy School series, Ben Ripley goes on a rescue mission when one of his own is abducted from a remote Alaskan training facility....

The City Spies head to the Big Apple when a credible threat is made to a young climate activist who is scheduled to speak in front of the upcoming United Nations General Assembly....

When suburban Claudia Kincaid decides to run away, she knows she doesn't just want to run from somewhere; she wants to run to somewhere....

Ben Ripley has been caught in the snares of SPYDER more than once and knows to be suspicious of anything that seems too good to be true. So when Murray Hill offers to hand over the SPYDER elite, Ben knows there must be something going on. But his hesitation doesn’t stop the assignment....

A sinister problem has occurred in London: all nature of ghosts, haunts, spirits, and specters are appearing throughout the city, and they aren't exactly friendly. Only young people have....

Thanks to the evidence Ben uncovered in his investigation of the Croatoan, the CIA has tracked his nemesis, Murray Hill, to Central America, where they believe he is boarding the world’s biggest cruise ship, The Emperor of the Seas, on its maiden voyage around the world....

They said his uncle Ian died in a car accident. Alex Rider knows that's a lie, and the bullet holes in his uncle's car confirm the truth....

It's a tough job, but somebody's got to do it. Guts, glory, danger, and sacrifice are all in a day's work for Hank the Cowdog, Head of Ranch Security....

As a massive outbreak of supernatural visitors baffles Scotland Yard, Lockwood & Co. continue to demonstrate their effectiveness in exterminating spirits....

In this second installment in the New York Times best-selling series from Edgar Award winner James Ponti, the young group of spies returns for another international adventure perfect for fans of Spy School and Mrs. Smith’s Spy School for Girls....

Twelve-year-old Ben Ripley is not exactly the best student spy school has ever seen - he keeps flunking Advanced Self Preservation. But outside of class, Ben is pretty great at staying alive....

Three complete stories in one collection! Includes The Woodshed Mystery, The Lighthouse Mystery, and Mountain Top Mystery....

Three complete stories in one collection! Includes Schoolhouse Mystery, Caboose Mystery, and Houseboat Mystery....

When Ben gets kicked out of the CIA's spy school, he enrolls with the enemy....

He wasn't born with the name Maniac Magee. He came into this world named Jeffrey Lionel Magee, but when his parents died and his life changed, so did his name...

The Mysterious Benedict Society is up against a new mission, significantly closer to home. After reuniting for a celebratory scavenger hunt, Reynie, Kate, Sticky, and Constance are forced to go on an unexpected search—a search to find Mr. Benedict....

Charlie Thorne is a genius. Charlie Thorne is fearless. Charlie Thorne may have finally met her match. Charlie Thorne is used to being on the run. Ever since she was recruited by the CIA to track down Einstein’s most dangerous equation, Charlie—and former CIA agents Dante Garcia and Milana Moon—have traveled around the world to prevent history’s greatest discoveries from falling into the wrong hands. But after beating others to the secrets hidden by Einstein, Darwin, and Cleopatra, they find they are not the only ones searching for an immensely powerful discovery of Isaac Newton’s.

Down at the bottom of the tall buildings of New York City, Magnolia Wu sits inside her parents’ laundromat. She has pinned every lost sock from the laundromat onto a bulletin board, in hopes that customers will return to retrieve them. But no one seems to have noticed. In fact, barely anyone has noticed Magnolia at all. What she doesn’t know is that this is about to be her most exciting summer yet. When Iris, a new friend from California arrives, they set off across the city to solve the mystery of each missing sock.

Katie and Pedro are enjoying a night of camping, but when it gets dark, Katie feels nervous. Her dad tells her that it won’t be very dark for long. Why? It’s a mystery that will be revealed with time. What other discoveries will Katie and Pedro make during their wait to solve the mystery?

Katie Woo has been learning about mummies, when she decides to make one of her own. With Pedro's help, Katie makes a wonderful mummy and case. When the two mummy makers let their project sit to dry, the mummy goes missing! Katie and Pedro start collecting clues that they hope will lead them to the missing mummy.

A small unexpected dent means she is offloaded to the sale rack at the back of a thrift store. Ten-year-old Shannon and her family are happy to bring Betty and her new friends home to their small farm. When Betty is mistakenly left behind at the park after Shannon's birthday party. It will take a Rescue Squad of friends who risk their lives to search for Betty. Shannon makes her way to the Big City but it's a whole new world that presents surprises around every corner. Shannon finds hope when her new unexpected friend Lakoiya offers to help.

Katie, Pedro, and their moms are headed out for an afternoon of canoeing. But Katie and her mom get separated from the other canoe, and before long, Pedro and his mom are worried. Where could they have gone to? The search is on for Katie Woo and her fishy canoe!

Katie Woo and Pedro are hot on the trail of a treasure map. But as it catches in the breeze, it keeps disappearing on them. Will they be able to nab the map and will it lead them to real treasure?

When an older couple tells Naomi and the rest of the club about a mean snake at a nearby pond, Naomi dismisses their concerns. After all, a pond is a natural place, and snakes aren’t mean—they’re just snakes.

Cousins Sophie and Wil certainly have their hands full. Wil's old friend Mr. Bertram is blamed for the disappearance of a priceless manuscript and lands in jail, things are up in the air at Auntie Vis Fortune-Telling with a new competitor next door, Sophie and Wil have exams to study for, Aunt Rue doesn't get the new job at the Secretariat after all, and their neighbor, Mrs. Oleander, falls deathly ill.

As far as thirteen-year-old Montana MacCarthy is concerned every animal in the Glen Helen Forest is under her protection. That goes double for the pair of American Bald eagles nesting in the oak on Talus Trail. When the Glen director asks her and the Wesley Club to create a kid-friendly pamphlet about the animals as a summer project, they jump at the chance. Montana guides them through the forest as they sketch and photograph bobcats, foxes, skunks, bats, and, yes, the eagles. Their project uncovers a ring of poachers who are desperate to get the Glen’s only two American Bald Eagles and a...

Steve, Matt, and Jenny are invited to hunt for a hidden treasure left behind by a mysterious forty-niner over a hundred and fifty years ago. As they begin to unravel the miner’s cryptic note, they realize they are not alone in the hunt for the gold. Determined to beat the competition to the treasure, the three detectives up their game only to come face-to-face with their main competitor—the ghost of the miner himself!

After school, a young boy is walking home when he hears whispers behind him. He turns, but no one is there. It happens again and again. There's something alive inside his backpack! Is it a ghost? A monster?

While on a camping trip, a group of young scouts come face-to-face with a hungry vampire! Are their necks on the line? Or does this vampire have a frightful sweet tooth?

"Dive into the enchanting world of The Magic Library: Secrets of the Steam Locomotive, where imagination meets history in an unforgettable adventure. Join Amelia and Bethany, two spirited sisters, as they uncover a magical library that whisks them back in time to the historic Rainhill Trials of 1829. Amidst the thunderous clamor of steam engines and the vibrant hustle of the crowd, they find themselves on a thrilling quest to unravel a hidden mystery in the world of early locomotives. As the sisters navigate this pivotal era in transportation history, they encounter legendary figures, ...

Discover a Heartwarming Christmas story about the joy of Giving Abby, her little brother Sam, mom, and dad didn't realize this Christmas was going to turn out to be an adventure. It was something they would never forget. Creating homemade gifts for family and friends was what it was all about. This included baking Christmas cookies and sharing them with everyone. The holiday treats were going to be extra special this year. They would bake cookies from recipes her grandma had made as a child with Abby’s great-grandmother long ago. That made this year even more exciting. Go along with Abby ...