This is an illustration of Dr Z, which is short for Doctor Zimmerman. He is the main villain in the book The Adventures of Mike Cunningham in Crater Valley. Dr Z is the owner of the ferocious Deathfrogs!
About the book:
The Adventures of Mike Cunningham in Crater Valley is an illustrated book for children about the age of 7-12. It will be made available through Apple iBooks in 2016.
