At 9th level, a mastermind's secrecy, obscurity, and mental conditioning reach superhuman levels. He becomes immune to any divination spell, spell-like ability, or effect that allows a saving throw (though he can still allow a divination effect to affect him if he wishes). Even divination effects that do not allow a saving throw have difficulty piercing a mastermind's barriers, since a mastermind can now choose to think in any language he speaks. Unless the opponent reading a mastermind's thoughts speaks all of the mastermind's languages, attempts at thought reading automatically fail. This ability replaces the investigator talent gained at 9th level.
