The moment they saw each other, Bean and Ivy knew they wouldn't be friends. But when Bean plays a joke on her sister, Nancy, and has to quickly hide and Ivy comes to the rescue, it proves that sometimes the best of friends are people never meant to like each other. Vibrant characters and lots of humor make this a charming and addictive introduction to the Ivy and Bean book series. From beloved children's book author Annie Barrows, the Ivy & Bean collection has been delighting preschool, kindergarten, elementary, and kids of all ages for nearly two decades.

How much trouble could a second-grader cause? Plenty, if it's Horrible Harry. Whether he's making Song Lee scream by showing her his pet snake, or playing a dead fish in the Thanksgiving play, Horrible Harry's just not happy unless he's stirring up trouble. But when one of Harry's classmates tries to get even with him by pasting canary stickers on his chair, lunch box, and library book, a showdown can't be far off.

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.

No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory! Can Cam help catch the diamond thief? Cam and her friend Eric are sitting at the mall when the jewelry store is robbed. Cam sees the thief, but the police arrest the wrong person. Now it's up to Cam to catch the real criminal!

When Henry's parents choose Mudge, the wriggling puppy has floppy ears and straight, soft fur. Mudge is tiny. But Henry knows he'll grow. Now Mudge is three feet tall, and he's the best friend Henry has ever had. Mudge trots to school with Henry, and he sleeps on Henry's bed. But one day the big dog goes for a walk by himself and gets lost. When Henry comes home from school, he is alone. Where's Mudge?