Return of the Penguins by Timothy Michael Lewis

Things are looking bleak for Malcolm and his adventurer friends.  The Pentagram Council have been defeated and Diablo is now in full control of their forces.  Casper is lost, presumed dead. Their victory in Asperios is looking increasingly hollow and Diablo is still possessing Stephanies body.  Is there any hope he can be vanquished?  Is the last piece of the key safe?  Will Malcolm ever be reunited with his love Stephanie?  Find out in the third and final book in the Magpies and Magic series of books.