Harley crashes the Kaleidoscope Collectors Convention, but when Batgirl and Supergirl show up to challenge her, the three tussle over a kaleidoscope that is actually a time travel device, transporting them all into in the Middle Ages.

When General Zod escapes the Phantom Zone and an interdimensional portal device malfunctions, Supergirl and Batgirl navigate through the weird, wild dimensions to find Zod and put him back in prison.

The Cheetah is unaware that the ancient necklace she steals from the museum turns her into a mindless beast, leaving Batgirl and Supergirl to battle a mutant monster.

The Joker hypnotizes the crowd at a comedy festival, but when Batgirl and Supergirl swoop in to challenge the supervillain, he uses his bubble blower invention to try and stop them.

HARLEY QUINN(TM) puts your big brain to work alongside WONDER WOMAN(TM), SUPERGIRL(TM), BATGIRL(TM), and all the other DC SUPER HERO GIRLS(TM) with jokes, riddles, puzzles, and more in this action-packed activity journal! Girls and boys ages 6 to 12 can get their capes on with the DC Super Hero Girls, which features the galaxy's most powerful teens in high school, developing their powers and mastering the fundamentals of what it means to be a super hero. But they have to have fun, too, right? And jokester Harley Quinn has come up with jokes, riddles, puzzles, gags, tongue twisters, and awesome activities to squeeze your brain, super tickle your funny bone, and help Wonder Woman, Batgirl, Supergirl, and all her other buddies unwind--if she doesn't blow their minds first! DC Super Hero Girls(TM)--the unprecedented new Super Hero universe especially for girls!

Harley Quinn investigates a high-tech carnival in this action-packed new DC Super Hero Girl novel! Funny girl Harley Quinn loves fighting crime with her classmates like Wonder Woman, Batgirl, and Supergirl, but she always does it her with own madcap style--and a big mallet! It's no surprise that Harley can't resist getting involved in a dance competition and organizing an outrageous battle of the bands. But when a high-tech carnival comes to town, Harley knows that things aren't what they seem and that only she can get to the bottom of the mystery--and deliver a great punch line while doing it! Praise for DC Super Hero Girls: “Sure to have wide appeal, this book is a solid option to balance collections saturated with male superheroes.” —School Library Journal "If you have a middle grader in your life looking for super-sized action, or a superhero enthusiast who isn’t sure where to turn to get more of the superheroes they might see on TV or in movies… Or if you just want to dive into a good book that shows young readers—especially young female readers—that girls can be the super heroes of their own stories, look no further: Super Hero High is for you." - Kirkus