s04e04 — The Painting

Rachel was pleasantly surprised. Despite the fact that the scriptwriters once again wanted to make her a victim, she behaved... Like Alex: she sensed a threat and tried to protect herself from it. Kat was also pleasantly surprised. She behaved like a teenage girl, and even got involved with the little witch again. Luxurious!

Kat was such a sweet little girl, but she's growing up and becoming a less attractive little girl.
The series was reminiscent of the Charmed series, there was also a story with a painting.