Grand Master is the rank of the main character and hero of the fictional game series Lone Wolf (gamebooks) starting from Book 21, Voyage of the Moonstone, written by Joe Dever. During the game, the character will be referenced as Grand Master, even though at the start of the game the reader can create or generate using the Random Number Table a Kai Name for the character.

Grand Master was born in MS 5063 in Sommerlund and is one of the first five of the New Order of the Kai to attain the rank of Grand Master. The reader can choose one of the ten Kai Weapons or use the Random Number Table to generate a Kai Weapon for the character.

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