"Otherwise Engaged" is a great title. I enjoy Amanda Quick's (Jayne Ann Krentz writing historicals) books. This one is late Victorian, almost Edwardian -- or have I misremembered and it is Edwardian? Wishful thinking maybe. I'd love an Amanda Quick novel set in one the grand Edwardian houseparty weekends.
Anyways, on with the review.
Classic Amanda Quick with a bit of an edge and two strong female characters - sisters.
There's a bit of melodrama - which is great if you're in the mood for that sort of read - and when you've read and reread as many of her books as I have, you can see repeated ideas. But if you're a fan, it's a good afternoon read.