Showing titles in Action & Adventure

The Alden children are helping their neighbors build a tree house. From the tree house, the children discover they can see into the attic of the house next door...and they notice a window that not even their neighbors know about! Does the old house have a secret?

Henry, Jessie, Violet, and Benny are off to the rain forests of Sumatra, where a protected piece of land is home to endangered animals such as orangutans, elephants, and tigers. But when part of the forest gets cut down, the Aldens have to figure out who is responsible, not only to protect the rain forest, but also the animals within.

For 500 years, the Cahills have been the most powerful family in the world. For 500 years, they've protected the source of their power - the 39 Clues. And for 500 years, they've kept their secrets silent. Until now. This extraordinary stand-alone novel cracks open the Cahill vault to tell the story of the most coveted piece of artwork in the world, a masterpiece that has been the target of seven separate theft attempts: Jan van Eyck’s altarpiece at Ghent.

There’s a bank robber in Green Lawn! A red-haired kid took a video of the crime, but nobody can find him. Without the video, will the robber go free? Dink, Josh, and Ruth Rose must track down that kid - before the bandit does!

The Aldens have joined Dr. Iris Perez as she investigates legendary creatures around the world. In this adventure, the children investigate what might be living in the deep trench off the coast of Puerto Rico. From manatees to mermaids to sea monsters, creatures of the sea have been attracting tourists to the area for years. But when a man on a nearby island goes missing, it’s up to the Aldens to sort out fact from fiction.

As a member of the most powerful family history has ever known, 13-year-old Dan Cahill has been shot at, kidnapped, and even thrown into a pit with a deadly snake. He’s survived it all due to luck, smarts, and his older sister, Amy, who always sticks by his side. Now Dan and Amy are facing their greatest threat yet, an enemy who has found a way to use the source of the Cahill family power against them.

The earth has shifted on its axis and a mysterious dark mark has appeared on the sun - the whole world is in peril! But billionaire tech genius Howard Hansom has a plan... When Grian's sister goes missing he's convinced she has run off to Hansom's new city to help save the world. But when Grian and his two friends Jeffrey and Shelli track her there they find that nothing is quite as it seems. Why is everything so secret? Where is the mysterious Area 13? What does Howard Hansom want with all the people he has enticed to live in his city?

When the class takes a field trip to the opera, they meet a strange man playing violin in the orchestra whom they believe could be the phantom who haunts the Bailey City Opera House.

It's been two years since Emily and Jess Volnik visited ancient Castle Keep in Scotland and made the acquaintance of the Boggart, a mischievous shape-shifting spirit who has lived in the castle for centuries. Now they've returned for another Scottish adventure, joining their old friend Tommy and Mr. Maconochie, the new owner of Castle keep, on a trip to Loch Ness, where a new expedition is determined to find the fabled monster. Of course, the fun-loving Boggart comes along for the ride, and wherever the Boggart goes, things are bound to get lively. But this time the Boggart has a serious mission....

Ridley Pearson brings us the origins of the rivalry between literature's most famous enemies - Sherlock Holmes and James Moriarty - told from the perspective of James' observant little sister, Moria. Before James grew up to be a ruthless, remorseless villain, he was a curious boy from Boston, with a penchant for trouble and an acid tongue. Thrown into a boarding school against his wishes, James winds up rooming with a most unlikely companion: a lanky British know-it-all named Sherlock Holmes.

The Aldens discover an exciting new exhibit to explore at their local zoo. But disaster strikes when a pair of rare ferrets is stolen. Two California condors are the thief’s next target. It seems the animals are being taken by someone who works for the zoo. But how can you stop a thief who has keys to all the cages? The Boxcar Children are determined to solve the mystery.

The Aldens are helping restore an old estate. The house is bursting with the collections of its mysterious and eccentric former owner. As the children explore, they come across hidden rooms, secret passageways, and strange noises coming from the walls. What’s the secret of the Bugbee House?

The Boxcar Children learn lots of interesting things about the Navajos - but best of all is a legend about an ancient Native American village that once existed nearby. Curious, the children begin digging there and uncover some valuable artifacts. But it seems someone wants the village to stay buried!

Every year, Swift Academy students go to a nearby summer camp to field-test their inventions. Tom and his friends have been working hard on all their projects, but they’re most thrilled about Noah’s new virtual reality simulation. They can’t wait for it to go live, and everyone is looking forward to running tests at the camp. Nothing dulls their excitement, not even when a mysterious prankster starts messing with people’s inventions.

It's time for one last fantabulous challenge with Mr. Lemoncello—the world's most famous gamemaker! This time everything is on the line—literally! Mr. Lemoncello has invited thirteen lucky 13 year-olds—including his biggest fan, Kyle Keeley—to compete in the final games. The winner of these games will become the new owner of Mr. Lemoncello's ENTIRE GAME MAKING EMPIRE!!! But uh-oh—someone is trying to destroy Mr. Lemoncello empire and all it stands for: imagination, games, books . . . knowledge! Can Kyle Keeley stop them and make his dreams come true?

Having solved the mystery of Arch-Aunt Schadenfreude's non-murder and uncovered the location of Grand Uncle Vile's long-lost treasure, Shenanigan Swift might just be in the running for junior detective of the year. But when robbers target Swift House, her sleuthing skills are tested like never before. The trail leads Shenanigan and her sisters to Paris and the Hotel Martinet, home of the estranged French branch of the Swift family. From there, the girls must track down Ouvolpo, a gang of daring thieves who design each of their crimes as audacious pieces of art.

Rufus the Doberman Pinscher has come to the ranch, and he's harassing the girl of Hank's dreams - the beautiful Miss Beulah the Collie. Meanwhile, Hank is suffering a serious case of mopwater poisoning. In his weakened condition, he enlists the help of that crafty little owl, Madame Moonshine.

Help Dink, Josh, and Ruth Rose solve mysteries from A to Z! This collection includes Detective Camp, Mayflower Treasure Hunt, White House White-Out, and Sleepy Hollow Sleepover.

There’s more than meets the eye when it comes to solving the world’s most curious capers. For middle school detectives Ava and Carol, it means sticking together, using their heads, and making sure justice is served swiftly and fairly. No matter where the trail may lead, Amy and Carol are on the case. Now, you too can give chase to jewel thieves, criminals, and power-hungry pilferers everywhere alongside this amazing dynamic duo.

Help Dink, Josh, and Ruth Rose solve mysteries from A to Z! This collection includes April Fools' Fiasco, Colossal Fossil, Grand Canyon Grab, and Space Shuttle Scam.