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.

A famous writer is coming to Green Lawn! Dink rushes to the bookstore to meet his favorite author, Wallis Wallace, and get all his books signed. But the author never shows up! Where is Wallis Wallace? It’s up to Dink and his friends Josh and Ruth Rose to track him down.

Green Lawn, we have a problem! When Bradley Pinto wakes up in the night to strange lights in his backyard, he thinks there are aliens in town. When he sees three-toed footprints in the snow, he’s sure of it. His twin, Brian, and friends Lucy and Nate aren’t so certain. But then Lucy’s cousin Dink, the twins’ brother, Josh, and Nate’s sister, Ruth Rose, all disappear. Are there really aliens in Green Lawn? And where could they be taking Dink, Josh, and Ruth Rose?

Sixth grader Greg Heffley doesn't understand his annoying younger brother, obnoxious older one, or well-meaning parents. But he knows enough to record his daily thoughts in a manly journal - not some girly diary. In a unique novel brimming with laugh-out-loud moments, Greg chronicles his first turbulent year of middle school.

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.

Noah, his sister Megan, and their best friends, Richie and Ella, live next door to the zoo. Megan is the first to notice the puzzling behavior of some of the animals. One day Megan disappears, and her brother and their friends realize it’s up to them to find her. Their only choice is to follow a series of clues and sneak into the zoo. But once inside, will they discover there’s much more to the Clarksville City Zoo than they could ever have guessed?

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.

Thanks to Kate's mom, a sports reporter, cousins Mike Walsh and Kate Hopkins have tickets to the Red Sox game and All Access passes to Fenway Park. But as they're watching batting practice before the game, the lucky bat of Red Sox star slugger Big D is stolen...right in front of dozens of people. Without the bat, Big D can't seem to hit a thing. Can Kate and Mike figure out who pinched the bat before Big D and the Sox chalk up a loss? The Fenway Foul-Up includes a fun fact section about Boston's Fenway Park.

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.

Why won't Sam Krupnik allow his mother to enter his bedroom? Why has he started calling his toy box The Lab? And why does he carry a Ziplock bag in his pocket at all times? Well, his mother's birthday is approaching, and she has told her family that what she really wants are homemade gifts. Sam has decided to invent a special, surprise perfume just for her - a concoction that will combine all of her favorite smells.

It's Future Job Day at Sam's school, and Sam knows exactly what he wants to be when he grows up-a zookeeper, just like Zookeeper Jake in his favorite picture book. His mother and big sister, Anastasia, help Sam create a memorable costume-so memorable that Sam insists on wearing it long after Future Job Day has passed and the rest of his classmates are back in their regular clothes.

"I had everything I needed to run a household: A house, food, and a new family. From now on it would just be me and Sammy - the two of us, and no one else". A tragic accident has turned 11-year-old Aubrey’s world upside down. Starting a new life all alone, Aubrey has everything she thinks she needs: SpaghettiOs and Sammy, her new pet fish. She cannot talk about what happened to her. Writing letters is the only thing that feels right to Aubrey, even if no one ever reads them. With the aid of her loving grandmother and new friends, Aubrey learns that she is not alone.

No one in her sixth-grade class knows quite what to make of Ms. Loupe, with her short hair, her taped square "stage" on the floor, and her interest in improvisational theatre. After all, their school is on an Air Force base - a place that values discipline more than improv. But her students soon come to love her fresh approach; and when her dear brother goes missing in Afghanistan, and Ms. Loupe herself breaks down, they band together to support their teacher.

Catherine, a 12-year-old girl with big responsibilities, loves her autistic younger brother David and makes lists of rules she thinks will help him get by. But she often feels that her parents, focused on special care for David, forget that she exists, too.

By sixth grade, Miranda and her best friend, Sal, know how to navigate their New York City neighborhood. They know where it's safe to go, like the local grocery store, and they know whom to avoid, like the crazy guy on the corner.

But things start to unravel. Sal gets punched by a new kid for what seems like no reason, and he shuts Miranda out of his life. The apartment key that Miranda's mom keeps hidden for emergencies is stolen. And then Miranda finds a mysterious note.