The Mage of Trelian

Part of Michelle Knudsen's exciting fantasy trilogy -- in a luminous paperback edition
Calen is desperate to escape Krelig, the evil mage, but he knows he must first learn as much as he can from this powerful figure if there is to be any hope of defeating him. Princess Meg, who thinks Calen went with Krelig willingly, has been training with her dragon to fight the enemy forces threatening her kingdom. Calen must find a way back to Trelian and earn Meg's trust again, or all is lost.