Dr. Hoo has been kidnapped! The mentor of the young heroes has been taken into the hidden kingdom of the enemy. The teens decide to descend deep underground to rescue him, but they are not prepared for what awaits them in the darkness below.
(Tags : The Lava Crown: Troll Hunters (Unabridged) Michael Dahl & Ben Kovar Audiobook, Michael Dahl & Ben Kovar Audio CD )
