Children Chapter Mystery

Thar she blows! Dink, Josh, and Ruth Rose are on an Alaskan whale watching adventure. On their first day, they see a mother orca and her calf. But the next day, the baby orca is missing! The calf needs its mother’s milk. Can the kids solve this whale of a mystery?

Melody is certain that her new basketball coach, Mr. O'Grady, is a leprechaun. Bailey School Elementary's new gym teacher is short, and Irish, and carries a bag filled with special stones. Soon, Melody and the other children are keeping an eye on him. When will they get lucky and catch a leprechaun?

People say New York City is a jungle. Still, P.C. Hawke is a little surprised when his best friend, Mackenzie, invites him to tag along with her police coroner mother to examine a scientist who has been mauled by jaguars at the Bronx Wildlife Conservation Park. But when the two teenage sleuths learn that the scientist actually died because he was given a lethal dose of gorilla blood after the attack, they quickly realize that the most vicious predator imaginable is loose in the park - a human killer!

High school sleuths P.C. Hawke and Mackenzie Riggs quickly regret their decision to take a difficult calculus class from a tough instructor at Columbia University. But even though she's mean, Professor Dunaway certainly seems an unlikely candidate for murder. Though there are plenty of suspects, a lot of things about this case just don't add up.

This third entry from the much-loved Nancy Drew and the Clue Crew series finds the clever detective and her friends investigating a Houdini of a pony. When a new petting zoo opens in town, Buttons becomes the star by escaping every night and showing up on someone else’s lawn to eat the flowers. Nancy quickly jumps on the case—because even though she’d love to see Buttons on her lawn one morning, it’s more important to keep him safe at the zoo.

Jack has found some insect eggs in his backyard. He can’t wait for them to hatch. But what’s inside?

The Bailey School kids find their imaginations running wild when yet another strange-looking individual joins the education staff, this time in the personage of bus driver Mr. Stone, who resembles the city library's sixth gargoyle.

Mac must crack a secret code that has been recovered from a double agent. A series of clues leads Mac to France and then to Japan, where he comes face-to-face with his arch-nemesis, the KGB man...and the world headquarters of Nintendo! Is the KGB Man secretly behind all of this? And are Mac's video-game skills good enough to face down his enemy at the Video Game World Championships?

Eddie's great aunt Mathilda is sick and he has to help take care of her. But when Eddie and his friends visit Mathilda's house, strange things start to happen. Howie sees someone staring at him from the attic window and, when his back is turned, his garlic potato chips are used to spell the word attic on the ground. During later visits, the kids hear noises from the attic, but Great Aunt Mathilda swears there's nothing up there.

For budding amateur sleuths, Nancy Drew and her Clue Crew pals George and Bess are the ultimate role models. Winter has come to River Heights, and the girls are busy making a snowman—affectionately named Sherlock. They are distracted, however, by one of their classmates. It seems Deirdre has changed her name to Madame Chocolata, and she’s reading marshmallows to tell fortunes.

Ruby Redfort’s not your average kid. She’s super-smart, always ice-cool, not to mention a gadget-laden secret agent with a talent for breaking codes. And she can keep her mouth shut…can’t she? Ruby and her butler, Hitch, work for an undercover crime-busting organization, where break-ins, daring rescues, and life-or-death situations are all in a day’s work. But always remember Rule #1: You can never be completely sure what might happen next.

They’re explosive and invisible. They’re extinct and never-ending. What are they? Science mysteries, of course! Get ready to crack the cases and the real science info wide open. You might need your goggles for this one.

Jem can't wait for school to let out for the year. Is there anything more boring than class when you could be outside? When rich boy Will brings a coin collection to school, it's an exciting treat. It isn't often the students get to see all that interesting money in one place. Then, a silver dollar goes missing during recess, and Jem is blamed!

Popular children's author Patrick Carman has captured the imaginations of children everywhere with his Elliot's Park series. In Haunted Hike, playful squirrels Elliot, Chip, Twitch, and all their furry friends are dressed in Halloween costumes and ready for a squirrel hike in Camp Canyon. But the adventure takes a scary turn when the squirrels see a ghost along the way! So the curious bunch sets out to find out whether the ghost is real or just a hoax.

They’re furry and funny. They’re tracked and tricky. What are they? Animal mysteries, of course! Get ready to crack the cases and the real animal info wide open. You might need your camouflage for this one.

After James gets a pen-and-ink set for his birthday, Marvin the beetle surprises him by creating an elaborate miniature drawing. James gets all the credit for the picture and before these unlikely friends know it they are caught up in a staged art heist at the Metropolitan Museum of Art that could help recover a famous drawing by Albrecht Dürer. But James can't go through with the plan without Marvin's help. And that's where things get really complicated (and interesting!)

I is for Island.... It’s picnic time! Dink, Josh, and Ruth Rose pack up a basket and wade out to Squall Island. Right away, they find a 100-dollar bill in the sand! But when they come back the next day, the entire island has mysteriously disappeared. What is the secret of Squall Island?

When Dink, Josh, and Ruth Rose follow a pale, dark-haired stranger into Ellie's Diner, he vanishes! But Ellie has a cut on her neck...or could it be a bite? Could there really be a vampire in Green Lawn? And could Dink, Josh, and Ruth Rose be his next victims?

The new swimming instructor at Camp Lone Wolf, Nessie McFarland, is anything but normal. And when she's in her scuba gear, Nessie's skinny black body, long neck, and little head remind the kids of the great legend of Lock Ness. But Nessie can't really be a monster, could she?

Where could those wolves be? When the kids visit the Maine wilderness, they spot a white mother wolf and her babies on a cliff. But soon after that, the pups are stolen! Can Dink, Josh, and Ruth Rose sniff out the culprits?