Hench-cat?

You may all remember from Niphxs Anyone that I had a cat named Faith- sadly, she died recently. However, I have a strange feeling that she's possessing my guniea pig. This is worrying, as it not only means that my guinea pigs bites me if I get within two metres of him, but also because I don't know if Monty (my guinea pig) is a hench-pig or -cat. My sister always forbade me from corrupting faith into my evil hench-cat, but now she's in something that's my property, so technically I can do whatever I want. But I liked having a hench-pig. But a hench-cat would be more useful.
It's like Sophie's choice.

Niphxs anyone?

What would you call a reverse sphinx? A xphins? I only ask because that's what faith- my misanthropic cat- looks like at the moment. She's sitting on top if the computer and I can only see her front half. She also tries to kill me if I get past; no riddles though, 'cept 'Hisstttthhh'.