Power-hungry warlord Silver Wolf plots against Moonshadow and the Grey Light Order. His schemes could tear Japan apart and the legendary mystic, the White Nun, is caught in the middle. To reach the White Nun's haunted mountain home, Moon and Snowhawk must survive Silver Wolf's living weapons: bounty hunters, a vengeful gangster and powerful Clan Fuma agents. Among them is Chikuma, an assassin who uses no force, weapons or poisons - but may prove the most lethal enemy they've encountered yet. Will Silver Wolf's wrath destroy Japan's guardians of peace?

Trained by a secret brotherhood. Charged with the fate of his world. Able to see through the eyes of animals. Young Moonshadow is an agent of the elite Grey Light order, spying for the Shogun of Japan at the dawn of an age of peace. But fanatical warlords plot to plunge the nation back into chaos using a foreign secret weapon. Up against Moonshadow on his first mission are seasoned spies, rogue samurai and most dangerous of all . . . a beautiful girl. Can Moon's courage, sword and unique powers prevent his land sliding back into civil war?

Attacked by the powerful Fuma clan, young Moonshadow and the agents of the Grey Light Order fight for their lives. In the heat of battle, one of their number disappears. Was the Grey Light Order agent abducted by the Fuma or did they leave willingly? Was there a double agent in their midst? Moonshadow and Groundspider are ordered to the Fuma's mountain fortress, said to be impregnable. Their mission: discover the truth, then act accordingly. Will their dangerous quest end in a rescue? Or will Moonshadow be forced to destroy a trusted friend?