… the White Book, where the deeds of his predecessors had been recorded. Some had been heroes, some weaklings, knaves, or cravens. Most were only men—quicker and stronger than most, more skilled with sword and shield, but still prey to pride, ambition, lust, love, anger, jealousy, greed for gold, hunger for power, and all the other failings that afflicted lesser mortals.
Berúthiel was a Black Númenórean and the wife of Tarannon Falastur of Gondor. She was noted for being “nefarious, solitary, and loveless”. It is therefore of no surprise that Tarannon died childless. She lived with her husband in Osgiliath but hated the sound and smell of the sea. She had ten cats under her service — nine black and one white. Berúthiel set the black cats to spy on the Men of Gondor and the white cat to spy on the black ones. She managed to learn many dark secrets about the realm and its people by conversing with them and reading their memories. These cats were infamous among the Gondorians, but they dared not touch them; however, Men would curse whenever they saw one pass by them. (x)