John Vornholt
John Blair Vornholt (born 1951) is an American science fiction author known primarily for his media tie-ins, particularly Star Trek novels.
Waterfall City is in grave danger when the Polongo River mysteriously dries up. Magnolia and her dinosaur friend Paddlefoot, along with Birch and a triceratops called Rogo, battle the elements in their desperate quest to save Dinotopia's most beautiful city.