Something is not right in Bayport. After a series of unfortunate (yet harmless) pranks, it looks like Frank and Joe have caught their suspect surprisingly early. Their classmate, Seth Diller, has taken his love of filmmaking a bit too far. But shortly after Frank and Joe confront Seth, there are fresh outbreaks of Seth-like pranks. Except these aren't as harmless. After a bit of investigating, the Hardy Boys uncover evidence of the Red Arrow - a group that will stop at nothing to bring chaos and crime to Bayport's peaceful existence.

When a thief steals the Applegate siblings' jewel collection from the Tower Mansion, the whole town of Bayport is left buzzing with questions. Who could have stolen it, and where could it be hidden? The Hardy boys are determined to find out, especially when their friend's father, Henry Robinson, is wrongly accused of the crime! From dusty old towers to secret secret passages, Frank and Joe will follow every clue they can to clear Mr. Robinson's name and reveal the true thief.

Dear Diary...Bess, George, and I are actually in Alaska! Everywhere you look, there are massive mountains and sparkling, deep-blue waters. We're on the maiden voyage of the Arctic Star luxury cruise ship, and my old friend, Becca Wright, the assistant cruise director, needs our help. She received threatening emails before even setting sail; then a bloody body turned up in the swimming pool.

Before Jake’s grandfather died, he was on the trail of a centuries-old mystery. And he has entrusted that mystery to Jake, leaving behind a set of hidden codes, riddles, maps, and other clues that lead Jake and his friends on a scavenger hunt into the heart of Colorado’s wild and rugged Rocky Mountain National Park.

What would happen if you discovered that your family was one of the most powerful in human history? What if you were told that the source of the family's power was hidden around the world, in the form of 39 Clues? What if you were given a choice - take a million dollars and walk away...or get the first Clue? If you're Amy and Dan Cahill, you take the Clue - and begin a very dangerous race.

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.

Before they were the Boxcar Children, Henry, Jessie, Violet, and Benny Alden lived with their parents on Fair Meadow Farm. Although times are hard, the Aldens are happy - “the best family of all,” Mama likes to say. One day, a blizzard hits the countryside, and a traveling family needs shelter. The Aldens take them in, and the strangers soon become friends. But things never stay the same at the farm, and the spring and summer bring events that will forever change their lives.

Coke and Pepsi McDonald didn’t want to jump off a cliff. They didn't want to get hit by poisoned darts from blowguns either. And they certainly don't want to get locked in their burning school, thrown into a pit at the top of a sand dune, or drowned in a vat of liquefied Spam. But what are you supposed to do when you’re being chased across the country by your insane health teacher and two guys in bowler hats who are trying to kill you? One thing's for sure, it'll be a snap for Coke and Pep to write their essays on "How I Spent My Summer Vacation."

In Dinosaurs Before Dark, adventure is waiting to happen! Jack and his younger sister, Annie, stumble upon a tree house filled with books. Where did the tree house come from? How long has it been there? When Jack reads a book about the Cretaceous period, 65 million years ago, and wishes he could really see the pteranodon, it suddenly appears at his window. Magically. Before Jack and Annie can figure out the mystery, the tree house whisks them back to the prehistoric past.

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.

A Civil War sword, a watermelon stabbing, missing roller skates, a trapeze artist's inheritance and an eyewitness who's legally blind! Encyclopedia Brown must solve cases by using his famous computer-like brain. Try to crack the cases along with him!

When Cameron, a five-year-old boy with a big imagination, first met Botox, the wrinkleless little bulldog, he thought he knew everything about dogs. But he will discover that’s not so. Botox, our four-legged protagonist with a huge imagination, is about to teach Cameron an amazing lesson. Can anybody hear him? Until now, nobody could hear him. But thanks to his imagination, Cameron is the only person who can hear Botox talk, while everyone only hear him barking.

In the first volume of a new series for younger listeners, Nancy gets to show off her sleuthing abilities while at her friend Deirdre's sleepover. Everyone's excited for pizza, cake and even a movie. But when Deirdre's Hollywood Heather doll goes missing, the fun stops, and,Nancy springs into action.

Plagued by misfortune, Ingrid Norling treks into the woods to clear her head. She emerges a monster-slayer, the shaken executioner of a creature so ferocious that even the king's strongest warriors could not destroy it. In a land that reveres swords and worships strength, this accidental heroism earns Inge an audience at court and an ill-fated prize: King Halvard impulsively adopts her and names her as his heir.

Spenser was just an ordinary boy who enjoyed video games more than reading until he was approached by a mysterious cowboy who gave him a small, white stone. Just touching the stone sent shivers up Spenser’s arm, and suddenly he wanted to try it out. That evening when Spenser read his book and held the stone, he found himself transported into the village of Arco, a boy from long ago who was trying to save his people from a ferocious dinosaur. Spenser and Arco team up to discover a secret about the dinosaur.