If you’ve ever created your avatar in a virtual world or played a MMORG, then you know how much fun it can be to play a character in a different world. But what if you could do it in real life?

Take a bunch  of creative kids and a love for Egyptian mythology, and you’ve got the imagination game in this theme’s mystery book. Watch our video, and then send in your guess of what the book is.

You may not realize this, but first-time campers aren’t the only ones who get nervous about sleep-away camp. Counselors-In-Training are also newbies — and for the main character in this theme’s mystery book, there’s A LOT to learn. Watch our video to see what happens, and then send in your guess of what book it’s from.

UPDATE 8/17/10: Wanna know the book? Listen for the answer in our “Bug Juice” Podcast, all about summer camp books.

You’ve probably heard the saying, “Getting there is half the fun.” Well, for the heroine in this theme’s mystery book, the journey is not so much fun as… a terrifying, near-deadly experience!

Watch our video to see what happens, and then send in your guess of what book it’s from.

It’s a bummer summer for BFFs Hailey and Claire because at the end of the season, Claire has to move away. But at least they have one last summer together, to hang out at the beach club, crush on older cutie Raymond, and… meet a strange creature from the deep?

Yep, there’s summertime magic in this theme’s mystery book! Watch our video to see what happens, and then send in your guess of what book it’s from.

UPDATE 7/13/10: Wanna know the book? Listen for the answer in our “Just Beachy” Podcast, all books that make the perfect beach reads.

In Harry Potter and the Prisoner of Azkaban, Hermione’s got her Time-Turner to travel into the past. In this theme’s mystery book, the main character’s got his… cat?

Watch our video to get the scoop on this feline feat, and then send in your guess of what book it’s from.

UPDATE 6/29/10: Wanna know the book? Listen for the answer in our “Cat’s Meow” Podcast, all books starring cats.

Summer vacation is the perfect time to make your way through a good series — unless you’re one of the kids in this week’s mystery book series. For these two, it doesn’t matter what the season is because instead of sitting at desks in a classroom, they spend their time traveling the world on a high-pressure hunt.

Watch our video to get the lowdown on their whereabouts, and then send in your guess of what series it’s from. (Hint: A new book just came out on May 25!) We’ll name the first person to get it right in our next podcast.

Thanks to our friend Agent M. for his assistance on this video!

UPDATE 6/15/10: Wanna know the book? Listen for the answer in our “Lazy, Hazy, Crazy Days of Summer” Podcast, all about summer series.

You’re probably familiar with the story of Anne Frank, who lived in a secret attic for years to escape the Nazis. But did you know lots of Jewish children hid in plain sight during WWII, pretending to be parts of other families? In this week’s mystery book, the police investigate a family in Denmark when one “daughter” doesn’t look like the others.

Watch our video to see what happens, and then send in your guess of what book it’s from. We’ll name the first person to get it right in our next podcast.

UPDATE 5/19/10: Wanna know the book? Listen for the answer in our “Royal Flush” Podcast, all about books involving royalty.

What happens when a rodent crashes a royal banquet? Trouble, that’s what. Just see for yourself in our video for this week’s mystery book! And then afterwards, send in your guess of what book it’s from. We’ll name the first person to get it right in our next podcast!

UPDATE 5/19/10: Wanna know the book? Listen for the answer in our “Royal Flush” Podcast, all about books involving royalty.

Dog may be man’s best friend, but one beloved author spent his childhood with a very different animal companion: a raccoon! In this week’s mystery book, the two pals go fishing, celebrate Christmas, and even compete in a pie-eating contest together. Don’t believe it? Just watch our video! And then afterwards, send in your guess of what book it’s from. We’ll name the first person to get it right in our next podcast!

UPDATE 4/27/10: Wanna know the book? Listen for the answer in our “Author! Author!” Podcast, all about author memoirs and autobiographies.

Meet the star of this week’s mystery book series. He’s a regular old kid being raised by his uncle — and then one day his uncle is murdered. Why? Well, it turns out he’s a spy for the government, and he knew more than his enemies wanted him to. And not only that, now the government wants this regular old kid to fill his uncle’s shoes and go undercover. Facing a series of dangerous missions as a 14-year-old? It’s no wonder our hero has a whole series named after him!

Watch our video for a briefing on the schoolboy-turned-spy, and then send in your guess of what series it’s from. We’ll name the first person to get it right in our next podcast!

UPDATE 4/13/10: Wanna know the book? Listen for the answer in our “What’s In a Name?” Podcast, all about books with boys’ names in the titles.