When we last saw Oliver and Celia Navel, they had fallen into the clutches of Sir Edmund S. Titheltorpe-Schmidt III and were doomed to spend their entire summer vacation doing his deadly bidding.In th
Eleven-year-old twins Oliver and Celia Navel live on the 4-1/2th floor of the Explorers Club with their father, Dr. Navel. Their mother, Dr. Navel, has been missing for years. So when an explorer show
“Thrilling and delightful!”—Pseudonymous Bosch, New York Times bestselling author The Navel Twins are at it again, for the fourth and final time! This time their travels take them to the North Pole w
Eleven-year-old twins Oliver and Celia Navel are forced to give up television again, this time for an adventure on a South Pacific island surrounded by giant killer squid.
When we last saw Oliver and Celia Navel, they had fallen into the clutches of Sir Edmund S. Titheltorpe-Schmidt III and were doomed to spend their entire summer vacation doing his deadly bidding. In t
The first in a wacky new series starring 11-year-old twins Oliver and Celia Naval, who along with their explorer father travel to Tibet to find their missing mother. Once there, adventure ensues, and
