A Royal Knight, Gavin, has been called to ensure the caravan's safety. Each wave of monsters wears away at their supplies and, perhaps even more dangerous, their hope. A mysterious material, Quicksilver, could save the kingdom—if only it could be forged! Gavin must find a blacksmith who can turn the Quicksilver into a weapon before the forces of darkness can take hold of the kingdom.It is said that Quicksilver has magical properties: it is harder than diamond and immune to any blow. To survive the coming war, the Royal Guards will have to be just as strong.