Nataliya Ruslanova Radova (also known as NRR) is the sole child of the 'missing' Russian princess, Anastasia, and is a Lucian, but a Madrigal in loyalty. She has a relationship with not only Irina Spasky, but also both Hope and Arthur Cahill, as mentioned on Card 429. She had a major role in The Black Circle, and was referred to as "NRR". She helped Amy and Dan get to the Lucian black circle and retrieve the Clue Amber. As revealed in The Black Book of Buried Secrets, she spies on the Lucians for the Madrigals, as seen during The Black Circle. Grace Cahill was actually her mother's friend.