This is Book 3 and the conclusion to the Heavy Metal Cowboy Series.In the distant future, fugitive mass murderer, Jared Saniska has chosen to negotiate with demons on behalf of the human race. Ancient knowledge and boundless powers lie almost within his grasp when he inadvertently starts a chain reaction, unraveling the bonds that have held the minions of evil for millennia. Now, Mason and his friends must race against time to reseal the locks that bind the hordes of hell. If they fail, it could mean the end of everything!