George and Harold have really done it this time--they've created a monster! She's faster, smarter, and more evil than anything the world has seen before--she's Wedgie Woman! With the help of her horrible robots and her horrendous hairdo, Wedgie Woman is on a mission to take over the world, and she'll give a whopping wedgie to anyone who stands in her way--including Captain Underpants.

Publisher Annotation: Some people think hats are fancy things you can buy at a dressy store, but that’s just the tip of the iceberg.

Petra is a little rock who believes she is a mighty mountain . . . until a dog fetches her for its owner, and she is tossed into a bird's nest. A mountain? No, Petra is now an egg! An egg of the world in a world of possibility. Until she's flung into a pond, and becomes an amazing island . . . and, eventually, a little girl's pet rock. What will she be tomorrow? Who knows? But she's a rock, and this is how she rolls!

A household of unusual creatures help beginning readers recognize common "household" words.

Harold draws a giant garden with his purple crayon where he meets many new friends.

A little girl and her brother play with her imaginary gold-horned unicorn that can float on water, fly, and turn herself into a fairy princess.

Millie and her dog, Casper, visit a unicorn statue in the park all the time, but one day the statue becomes real and takes the two of them on a magical tour around the world.

A group of children shakes shapes out of a box and discovers the fun of using circles, squares, triangles, semicircles, rectangles, and their imaginations.

A young boy journeys in search of a dragon, through a strange land where he finds wardrobe monsters, pillow hills, and umbrella trees.

A mother reassures her young son as he imagines all the things that might go wrong while trick-or-treating.