Thomas Holland in the Realm of the Ogres (Thomas Holland Series) (Volume 2) [signed] [first edition]

Book II in the Thomas Holland series. In the first book Tom and his friends restored the barrier – but that was only a temporary fix. Now they must find a permanent solution, the artifact, which will protect Elfhaven for a thousand years and restore the Citadel's power to a level so that Tom and his mom can safely return home to Earth. To find the artifact they are forced to embark on a dangerous quest through the deadly Demon Forest, cross the raging Icebain River, and solve the riddle of the Cave of Nightmares. On their desperate journey they must climb an active volcano past scalding geysers, boiling mudpots, and deadly giant ice-worms. Standing in their way are a bungling troll and ogre, a shape-shifting demon, and a demented fairy queen. With gremlins and wizards in hot pursuit only Tom’s scientific knowledge and the use of light and dark magic can save them. Did I mention dragons?