Madame de Lanrivain (Kerfol)

Madame de Lanrivain is the person that tells the narrator about Kerfol's secret. She tells the narrator that the owner of Kerfol would love to sell the mansion and that the keeper should have been there but might had been out drinking with his daughter. She also mentions that there are no dogs at Kerfol and explains to the narrator that it must had been the ghosts of the dogs that only appear on "that day".[1]

[1] Wharton, "Kerfol," 332