I can remember being four years old, and not even thinking sometimes about the consequences of my actions - the cat's the only one below your daughter in the pecking order, and little enough for her to bully. It does have to stop, a lifetime with cats assures me that a cat will only take so much before she really lashes out, or starts to avoid children altogether, and it won't be the cat's fault. The cat must be so confused - the little girl who she loves and who has cared for her in the past has suddenly turned into her tormentor. Please don't "feel like" the cat is being terrorised - she is. Perhaps you could try to tell your little girl that the cat is so sad that her human friend hurt her and is being nasty to her, but that the cat will forgive her and will gladly be her friend if she's nice to her again. Cats don't bear malice - my cats are upset if we shout at them for misdeeds - but they soon come round when they are forgiven, and I'm sure your cat will, if you can just break this chain of your little girl persecuting the cat. If not, the cat will be very unhappy and her behaviour too will be unpredictable - and it's not the cat's fault.