Journey To Dragon Mountain

"Mike and Evie are thrilled when their dad returns to Glendragon with tales of an exciting adventure. The King tells them Vikings have stolen a crystal that belongs on Dragon Mountain and he must find it and return it before the giant dragon who lives there realizes it is missing. Mike and Evie decide to surprise their dad and find the crystal on their own. But are they too young for such a dangerous mission?"--P. [4] of cover.