The Wyverns' Treasure

Before Nate and Aunt Phil can find the culprit, they are called to Welsh countryside. The wyverns (giant dragons) are in an uproar. Could the same man who ransacked the Fludd house be behind the rift with the wyverns? And just what does he want with The Book of Beasts? But before Nate can solve that mystery, he must calm the dragons before it's too late. It's just another day at work for the world's youngest beastologist!