Mistle, a girl with short, straw colored hair, was one of the members of the Rats. Mistle came from a wealthy noble family in Thurn (in Maecht) until she was kidnapped by a roving band of bandits that ransacked the village. She and the rest of the kidnapped females were repeatedly raped during this time. Asse eventually discovered her in a ditch where her captors had dumped the bodies; Mistle being the only survivor.
She was the first of the Rats to take an (almost over-abundant) interest in Ciri, who was being held captive along with Kayleigh. Later that night, Mistle chastised Kayleigh for attempting to rape Ciri (who was too emotionally drained, due to her recent past experiences, to resist). Once Kayleigh was gone, Mistle took advantage of the now half-dressed Ciri. Mistle attempts to build more on the purely-physical relationship, but Ciri remains emotionally distant and even admits she's only in it because she doesn't want to be alone again.
Before leaving the Rats for good, Ciri gets the same tattoo (a rose) as Mistle on her inner thigh. After a night of physical relations Mistle catches Ciri the next morning attempting to leave. She does not stop her, but concludes that Ciri had been more receptive because she was going to leave.
Mistle, along with the rest of the Rats, meets her end at the hands of Leo Bonhart.