I know what you mean Bumble Bee. She has been resisting the elders efforts to visit her, and we both wondered if her sons visit was more than just a social call, as she would obviously let him in whereas she would be less willing to allow the elders to visit. I haven't asked her where the book was when he found it, she does have bookshelves in her lounge though, and being the tidy person she is I'd have thought it would have been in one of them.
He may be her son, but he is an ambitious jw, and hopes to make ms soon, so perhaps he was on a fact finding mission at the behest of the elders. I know Marion wouldn't like to think that, but Trev and I both had that thought when she told us he'd been and seen the book. I'm not a gambler, but I wouldn't mind betting that the boe all know she's read COC by now, and they are bound to ask her about it if and when they see her.