During World War II U.S. forces had to keep battle plans and other top secret information out of the enemy's hands. Coded messages were often used, but secret codes could be broken. To solve this problem, the U.S. military turned to an unexpected source to create an unbreakable code. The Navajo people spoke a complex language that few outsiders knew how to speak. Several Navajo soldiers were recruited to develop a code based on the Navajo language. The result was a complex code that could ...

Eek and Ack don’t give up! The Terrible Twins from the Great Goo Galaxy are out to conquer Earth once again. But maybe they should have studied up on the solar system first. Let’s just say, the planet Pluto will never be the same.

When Jack sells his family's cow for magic beans, his mother is anything but pleased. Soon, however, the beans sprout into a towering beanstalk. It leads to a castle filled with gold and other treasures. Jack's family will be rich, if he can sneak past the man-eating giant!

To fulfill his quest and erase a sorrowful past, the half-man, half-god Hercules was ordered to complete 12 difficult labors. From wrestling the Nemean Lion to capturing the Erymanthian boar, Hercules achieved the impossible and became a legendary hero of ancient mythology. Follow Hercules' exciting adventure in graphic novel format.

While zipping through space in their rocket-powered washing machine, Eek and Ack get sucked into a black hole. Moments later, they're spit out on the other side of space. The new universe has its own planet Earth, but it's weird pink color. Of course, that won't stop this terrible twosome from trying to conquer it.

At a Gotham City charity event, The Riddler kidnaps a wealthy businessman and demands a huge ransom. Can Batman decipher the villain's riddles, or will he be stumped? Does the Dark Knight call for backup or take the case alone? Will he find the businessman or be lost himself? In this interactive story, YOU CHOOSE the path Batman should take. With your help, he'll solve the puzzle of The Riddler's Ransom!

A new mummy has started at school, but he’s really just a human in disguise. Brian the zombie and his friends know they need to protect the new kid from Harriet the werewolf and her gang of bullies. The Monster Heroes come up with a plan that makes the human boy seem like the scariest monster of all. A glossary, discussion questions, and writing prompts complete this early chapter book.

Tells the story of Antarctic explorer Ernest Shackleton and his failed attempt to cross the coldest and windiest continent on earth. Written in graphic-novel format.

Ouch, my aching back! In this story, a tiny pea can be a big problem. Navigate your way through three twisted versions of the classic fairy tale. Will YOU CHOOSE the path to your happily ever after?

Jason tracks down a funktified fleece (like, seriously rotten, that is!) in this epically gross Greek myth retelling! Will the legendary hero prevail in his grotesque quest, or will he totally stink? With wacky illustrations, true-to-tale back matter, and introductions by Michael Dahl himself, THE GROSS GREEK GODS series will have mythology lovers and gross-out fans alike reading in legendary proportions.

Mina and her family head to their homeland of Transylvania for vacation. However, this is no vacation for Mina. Mina is a vampire who drinks beet juice instead of blood. How can she hide her secret when surrounded by vampires all day and night? And what is she going to do when she meets Dracula's great-great-great-great grandson? Her friends are back home, but the Monster Heroes find a way to help Mina. A glossary, discussion questions, and writing prompts complete this early chapter book....

As a war tribute to Crete, King Aegeus of Athens is forced to give 14 tributes as a sacrifice to the minotaur, a creature that is half-man, half-bull. To complete his quest and save the tributes from a horrible fate, Theseus must travel to the heart of the Labyrinth and confront the ferocious beast himself. Follow Theseus' exciting adventure in graphic novel format.