The Butterfly Box (by Nora Naish)

I've never heard of Nora Naish, and can't find anything about her on the Internet (other than lists of her books, and a few book reviews). However this was another of those books that looked good from the cover and blurb on the back, and I found it in a second-hand bookshop...

'The Butterfly Box' opens with Lucy's 80th birthday. There's a family reunion, with some inevitable tensions.

An old heirloom, a box with a secret, is opened. Then there's a very lengthy flashback to the past, which gradually uncovers an unpleasant family secret.

However, by the time it was revealed, it was no surprise to me. I didn't find the book terribly interesting, really.

No longer in print, but perhaps worth picking up if you come across it inexpensively in a charity shop.