It takes both delicacy and grace to move so quietly that one is able to avoid detection.. Naturally the Character's measure of success is determined to some degree by the surroundings and the available light; it is more difficult to hide oneself in a brightly-lit, empty room than in a dark, crate-filled warehouse. Armor will affect a would-be prowler's chance of success; it is rather easier to sneak about in normal clothes than in a clanking suit of plate mail.

Prowling Apprentice the Character's chance of success is unaffected by lighting, and armor penalties are halved

Prowling Expert the Character's chance of success is unaffected by surrounding objects, and he can walk while Prowling

Prowling Master the Character can conceal himself during combat and cause his opponent to lose track of him, and he may also run while Prowling