Thorvin's Superweapon

From the publishers blurb: An old friend has developed a breathtaking machine and invites adventurers to take a look at it. The journey there is arduous and leads through a mountain range in which orcs lurk for careless travelers. But even after their arrival there are problems - the disputes between the various dwarf clans in the city threaten to escalate. When Thorvin's miracle weapon is stolen, it is entirely up to the adventurers to prevent the worst, uncover the truth behind everything and help their friend.