The Secrets of Droon: Volume 1: #1:The Hidden Stairs and the Magic Carpet; #2:Journey to the Volcano Palace; #3: The Mysterious Island

The Secret Seven: Book 1

The Secrets of Droon: Volume 2: #4:City in the Clouds; #5:The Great Ice Battle; #6:The Sleeping Giant of Goll

The Secrets of Droon #4: City In the Clouds

Secret Seven Adventure: Book 2

The Secrets of Droon #6: The Sleeping Giant of Goll

Well Done, Secret Seven: Book 3

The Mysterious Island, The Secrets of Droon Book 3

The Secrets of Droon #5: The Great Ice Battle

I Survived the Great Chicago Fire, 1871 (I Survived #11)

Journey to the Volcano Palace: The Secrets of Droon Book 2

I Survived the Joplin Tornado, 2011 (I Survived #12)

I Survived the Hindenburg Disaster, 1937 (I Survived #13)

I Survived the Eruption of Mount St. Helens, 198 (I Survived #14)

I Survived the Battle of Gettysburg, 1863 (I Survived #7)