* Step Into Reading Step 4: 20,000 Baseball Cards under the sea
* Step into Reading Step 4: Ballerina Dreams: From Orphan to Dancer
* Step Into Reading Step 4: Choppers!
* Step Into Reading Step 4: Escape North!: The Story of Harriet Tubman
* Step Into Reading Step 4: First Kids
* Step Into Reading Step 4: Helen Keller: Courage in the Dark
* Step Into Reading Step 4: Hungry Plants
* Step Into Reading Step 4: Ice Mummy: The Discovery of a 5000 Year Old Man
* Step into Reading Step 4: Nelson Mandela: From Prisoner to President
* Step Into Reading Step 4: Pompeii...buried Alive
* Step Into Reading Step 4: Soccer Sam
* Step Into Reading Step 4: Spooky and Spookier: Four American Ghost Stories
* Step Into Reading Step 4: The Fly on the Ceiling: A Math Myth
* Step Into Reading Step 4: The Great Houdini
* Step Into Reading Step 4: The Little Mermaid
* Step Into Reading Step 4: The Mystery of the Pirate Ghost
* Step Into Reading Step 4: Tut's Mummy:Lost...and Found
* Step Into Reading Step 4: Volcanoes: Mountains of Fire
* Step Into Reading Step 4: Wild Cats