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.

Doug discovers that though being Harry's best friend in Miss Mackle's second grade class isn't always easy, as Harry likes to do horrible things, it is often a lot of fun.

Mr. Watson and Mrs. Watson live ordinary lives. Sometimes, their lives feel a bit too ordinary. Sometimes, they wish something different would happen. And one day, it does, when someone unpredictable finds her way to their front door.  

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?

A two book set featuring The Infamous Ratsos and The Infamous Ratsos Are Not Afraid.