The Dragon in the Whites (Dragon in the Whites, 1) [Baird, Tim]

A young Viking boy named Tryggvi is exploring an island off of the southern coast of Iceland when he stumbles upon an unusual stone. Left forgotten for most of his life, the stone sat in solitude... and waited.Centuries later, a dragon is awoken from a long slumber and terrorizes the people of Maine and New Hampshire. Only the determination and resolve of a young man can save the people and put an end to the mythical tyrant. But will he be strong enough to take down the beast?