ABDO

The best mountain bikers on earth gather in Alberta, Canada, every summer to begin one of the biggest challenges their sport has to offer. This tit...

Turning their backs on the government, Frog Boy and the Disco Queens look to take down the organization behind the Tin Can. But first, they must di...

Deserts are stark and beautiful, attracting hikers and other people seeking adventure. But spending time in a desert has potentially deadly risks. ...

Mabel's school is throwing a Thanksgiving party and she is helping her aunt and uncle plan it. One of the last things they need to figure out is wh...

Mabel is a prodigious chef who is still in elementary school. Each title follows her as she perfects a new recipe, traveling the world to get the s...

Betrayed by his friends, Frog Boy ventures off alone only to learn the truth about the Disco Queens--they too were born as hybrids inside the Tin C...

Around the world, people celebrate many holidays and festivals. From religious rituals to joyous New Year celebrations, these holidays involve a va...

Caves are fun to explore, and underground mines provide jobs for many people. But entering underground spaces has potentially deadly risks. Cave an...

Every summer, runners gather in California's Death Valley to begin a race that covers 135 miles in searing heat. After beginning at one of the lowe...

When a new law is passed where all Meta heroes are required to surrender themselves to the government, the Freedom Force resists and gets captured ...

Mabel is excited to go camping with her scout troop and wants to make a special treat for her troop's newest member. Since they're learning how to ...

Extreme endurance sports test athletes' physical and mental strength as they compete in some of the most brutal conditions imaginable. Extreme Spor...

Since the late 1970s, motorcyclists and auto racers have gathered to test themselves over thousands of miles of some of the harshest deserts on Ear...

All Elliott Harkness wants is to be a superhero, like his parents, older sister, and even his dog. But Elliott is a "zero"--which is super-speak fo...

This title introduces readers to some of the most popular and influential video games of all time. Readers will learn about iconic characters, reno...

With three grueling events combined into one energy-draining test of endurance, an Ironman triathlon pushes some of the top swimmers, runners, and ...

Elliott has to follow a time-trotting trouble-maker and can't mess with history or reveal his identity, but his own existence is up for grabs when ...

The Battle of Gettysburg was a turning point in the American Civil War, and it continues to be an important part of the history of Gettysburg, Penn...

Upon meeting the bank-robbing Disco Queens, Frog Boy finds himself entangled in a government conspiracy where he is forced to track down other hybr...

It's almost Halloween and Mabel has the perfect costume. Now all she needs is the perfect snack to hand out to trick-or-treaters. A trip to New Jer...

The state fair is approaching, and Mabel makes a new friend who runs a food truck. When asked what Mabel would serve if she ran her own truck, her ...

Before cars, people used trains, boats, or their own feet to get around. Today, though, cars are everywhere! This encyclopedia gives readers a look...