Madeline Buthane is a tour-group leader in Rennes-le-Château. She has extensive knowledge of the region and of the various theories regarding the treasure in the region. She is voiced by Jennifer Hale.
The following has spoilers for Gabriel Knight 3: Blood of the Sacred, Blood of the Damned
Buthane is later revealed to be an agent for French intelligence. She is seen using sex to get information from Abbe Arnaud, and attempts the same with both Gabriel and Mosely, though both reject her. Part of her job is to test some of the latest theories France's intelligence agencies have about where the Rennes treasure is. When one of these theories is preempted by Mosely, she becomes suspicious of him, but claims not to know the CIA was behind the hack into her system until Mosely admits to being a part of the agency.
Personality and traits
Beautiful, strong-willed, and erotically French, Buthane has down cold the mix of outdoorsy-yet-quintessentially-feminine womanhood that few men can resist. She certainly has her nearly all-male tour group wrapped around her little finger. Still, she is awfully enthusiastic, one might even say obsessed with the Rennes-le-Château treasure. Could the tour group be a ruse? A way to get free labor for a personal mission or get frequent access to the region for her own purposes? And is her interest in the ideas of every male she runs into really coquettishness? Or is she hunting for something specific?
Behind the scenes
In the French version of the game, she is renamed Madeline Muselier.