The Gem Mountains are a terrible underground mine that has swallowed up thousands and thousands of human lives. Once upon a time, it was here that a boy sold into slavery was brought, who later received the name Wolfhound. The boy managed to do the impossible - he remained alive and broke free. Years later, the last warrior from the Gray Dog clan returns to the Gem Mountains. He will once again have to descend into gloomy adits full of horror and suffering. Life is nothing next to the fulfillment of duty, Wolfhound goes to the mine, as he once went to the castle of the kuns Vinitaria, nicknamed the Ogre. He goes without expecting to return.