The Shadow Cipher


Laura Ruby - 2017
    Fifty-seven years later, the enigmatic architects disappeared, leaving behind for the people of New York the Old York Cipher—a puzzle laid into the shining city they constructed, at the end of which was promised a treasure beyond all imagining. By the present day, however, the puzzle has never been solved, and the greatest mystery of the modern world is little more than a tourist attraction.Tess and Theo Biedermann and their friend Jaime Cruz live in a Morningstarr apartment house—until a real estate developer announces that the city has agreed to sell him the five remaining Morningstarr buildings. Their likely destruction means the end of a dream long-held by the people of New York. And if Tess, Theo and Jaime want to save their home, they have to prove that the Old York Cipher is real. Which means they have to solve it.

The Emerald Atlas


John Stephens - 2011
    Ripped from their parents as babies, they are being protected from a horrible evil of devastating power, an evil they know nothing about.Until now.Before long, Kate, Michael, and Emma are on a journey through time to dangerous and secret corners of the world...a journey of allies and enemies, of magic and mayhem. And — if an ancient prophesy is correct — what they do can change history, and it is up to them to set things right.

Woof


Spencer Quinn - 2015
    Bowser is a very handsome and only slightly slobbery dog, and he can smell lots of things. Like bacon. And rawhide chews! And the sweat on humans when they're lying.Birdie Gaux, the girl Bowser lives with, also knows something is wrong. It's not just that her grammy's stuffed prize marlin has been stolen. It's the weird rumor that the marlin is linked to a missing treasure. It's the truck that seems to be following Birdie and the bad feeling on the back of her neck. When Birdie and Bowser start digging into the mystery, not even Bowser's powerful sniffer can smell just how menacing the threat is. And when the danger comes straight for Birdie, Bowser knows it is up to him to sic 'em.

Chasing Vermeer


Blue Balliett - 2004
    Before they know it, the two find themselves at the center of an international art scandal, where no one — neighbors, parents, teachers — is spared from suspicion. As Petra and Calder are drawn clue by clue into a mysterious labyrinth, they must draw on their powers of intuition, their problem-solving skills, and their knowledge of Vermeer. Can they decipher a crime that has left even the FBI baffled?

Framed!


James Ponti - 2016
    He’s learning his way around using TOAST, which stands for the Theory of All Small Things. It’s a technique he invented to solve life’s little mysteries such as: where to sit on the on the first day of school, or which Chinese restaurant has the best eggrolls.But when he teaches it to his new friend Margaret, they uncover a mystery that isn’t little. In fact, it’s HUGE, and it involves the National Gallery, the FBI, and a notorious crime syndicate known as EEL.Can Florian decipher the clues and finish his homework in time to help the FBI solve the case?

The Strangers


Margaret Peterson Haddix - 2019
    Chess has always been the protector over his younger siblings, Emma loves math, and Finn does what Finn does best—acting silly and being adored. They’ve been a happy family, just the three of them and their mom.But everything changes when reports of three kidnapped children reach the Greystone kids, and they’re shocked by the startling similarities between themselves and these complete strangers. The other kids share their same first and middle names. They’re the same ages. They even have identical birthdays. Who, exactly, are these strangers?Before Chess, Emma, and Finn can question their mom about it, she takes off on a sudden work trip and leaves them in the care of Ms. Morales and her daughter, Natalie. But puzzling clues left behind lead to complex codes, hidden rooms, and a dangerous secret that will turn their world upside down.

School of Fear


Gitty Daneshvari - 1999
    Theodore Bartholomew is petrified of dying. Lulu Punchalower is scared of confined spaces. Garrison Feldman is terrified of deep water. With very few options left, the parents of these four twelve year-olds send them to the highly elusive and exclusive School of Fear to help them overcome their phobias. But when their peculiar teacher, Mrs. Wellington, and her unconventional teaching methods turn out to be more frightening than even their fears, the foursome realize that this just may be the scariest summer of their lives.

Nightmares!


Jason Segel - 2014
    And now waking up is even worse!Charlie Laird has several problems:1. His dad married a woman he is sure moonlights as a witch.2. He had to move into her purple mansion, which is not a place you want to find yourself after dark.3. He can’t remember the last time sleeping wasn’t a nightmarish prospect. Like even a nap.What Charlie doesn’t know is that his problems are about to get a whole lot more real. Nightmares can ruin a good night’s sleep, but when they start slipping out of your dreams and into the waking world—that’s a line that should never be crossed. And when your worst nightmares start to come true . . . well, that’s something only Charlie can face. And he’s going to need all the help he can get, or it might just be lights-out for Charlie Laird. For good.[This is the first book in a trilogy.]

Ali Cross


James Patterson - 2019
    While solving some of the nation's most challenging crimes, his father always kept his head and did the right thing. Can Ali have the same strength and resolve?When Ali's best friend Gabe Qualls is reported missing, Ali is desperate to find him. At the same time, a string of burglaries targets his neighborhood---and even his own house. With his father on trial for a crime he didn't commit, it's up to Ali to search for clues and find his friend. But being a kid sleuth isn't easy---especially when your father warns you not to get involved!---and Ali soon learns that clues aren't always what they seem. Will his detective work lead to a break in Gabe's case or cause even more trouble for the Cross family?

The Magic Misfits


Neil Patrick Harris - 2017
     When street magician Carter runs away, he never expects to find friends and magic in a sleepy New England town. But like any good trick, things change instantly as greedy B.B. Bosso and his crew of crooked carnies arrive to steal anything and everything they can get their sticky fingers on. After a fateful encounter with the local purveyor of illusion, Dante Vernon, Carter teams up with five other like-minded illusionists. Together, using both teamwork and magic, they'll set out to save the town of Mineral Wells from Bosso's villainous clutches. These six Magic Misfits will soon discover adventure, friendship, and their own self-worth in this delightful new series. (Psst. Hey, you! Yes, you! Congratulations on reading this far. As a reward, I'll let you in on a little secret... This book isn't just a book. It's a treasure trove of secrets and ciphers and codes and even tricks. Keep your eyes peeled and you'll discover more than just a story--you'll learn how to make your own magic!)

The Boundless


Kenneth Oppel - 2014
    When first-class passenger Will Everett gets the key to a train car containing priceless treasures, he becomes the target of sinister figures from his past. To survive, Will joins a travelling circus, helped by ringmaster leader Mr. Dorian, and Maren, a girl his age and an expert escape artist.

Small Spaces


Katherine Arden - 2018
    So when she happens upon a crazed woman at the river threatening to throw a book into the water, Ollie doesn't think—she just acts, stealing the book and running away. As she begins to read the slender volume, Ollie discovers a chilling story about a girl named Beth, the two brothers who both loved her, and a peculiar deal made with "the smiling man," a sinister specter who grants your most tightly held wish, but only for the ultimate price. Ollie is captivated by the tale until her school trip the next day to Smoke Hollow, a local farm with a haunting history all its own. There she stumbles upon the graves of the very people she's been reading about. Could it be the story about the smiling man is true? Ollie doesn't have too long to think about the answer to that. On the way home, the school bus breaks down, sending their teacher back to the farm for help. But the strange bus driver has some advice for the kids left behind in his care: "Best get moving. At nightfall they'll come for the rest of you." Nightfall is, indeed, fast descending when Ollie's previously broken digital wristwatch, a keepsake reminder of better times, begins a startling countdown and delivers a terrifying message: RUN. Only Ollie and two of her classmates heed the bus driver's warning. As the trio head out into the woods--bordered by a field of scarecrows that seem to be watching them--the bus driver has just one final piece of advice for Ollie and her friends: "Avoid large places. Keep to small." And with that, a deliciously creepy and hair-raising adventure begins.

Demon Dentist


David Walliams - 2013
    Strange things were happening in the dead of night. Children would put a tooth under their pillow for the tooth fairy, but in the morning they would wake up to find… a dead slug; a live spider; hundreds of earwigs creeping and crawling beneath their pillow.Evil was at work. But who or what was behind it…?

Premeditated Myrtle


Elizabeth C. Bunce - 2020
    Armed with her father’s law books and her mum’s microscope, Myrtle studies toxicology, keeps abreast of the latest developments in crime scene analysis, and Observes her neighbors in the quiet village of Swinburne, England. When her next-door neighbor, a wealthy spinster and eccentric breeder of rare flowers, dies under Mysterious Circumstances, Myrtle seizes her chance. With her unflappable governess, Miss Ada Judson, by her side, Myrtle takes it upon herself to prove Miss Wodehouse was murdered and find the killer, even if nobody else believes her — not even her father, the town prosecutor.

Stormbreaker


Anthony Horowitz - 2000
    He wasn't wearing his seatbelt, they said. But when fourteen-year-old Alex finds his uncle's windshield riddled with bullet holes, he knows it was no accident. What he doesn't know yet is that his uncle was killed while on a top-secret mission. But he is about to, and once he does, there is no turning back. Finding himself in the middle of terrorists, Alex must outsmart the people who want him dead. The government has given him the technology, but only he can provide the courage. Should he fail, every child in England will be murdered in cold blood.