The witch had a spell that backfired and was trapped in her house, sitting staring at the fire. The house was rented by a nice young woman who could sort of see her and treated her politely-offered her tea. The witch's orange tabby was still around and got killed defending the young woman from the witch's nefarious nephew. Some visitor came up later-obviously to be the boyfriend and he'd found the reincarnation of the orange tabby. The witch smiles as she fades away (I think) released. Written in late 90s maybe?
Anyone remember this story and what book it's in? Any help appreciated. Thanks!!! Andrea