Cat by the tail - Sarah J Verney

Salem is being terrorized! When Hilda brings home a tiny kitten that she has found, Salem feels out-cuted and downright ignored. And what's worse is that the guest acts more like a permanent pet, sleeping in Salem's favourite spots, following him everywhere and monopolizing Sabrina and her aunts. Salem doesn't like to share so he does some not-so-nice things and lets the kitty take the blame. But when a Doberman shows up, causing more commotion than Kitty, how far will Salem go to prove that he's Spellman's favourite cat?