I will be the first to say taht I do not like sequels written by any one other than the origianl author...I do think they ruin things because they generally don't run true to what I think the first author would have done...

I don't think any sequels to the originals "ruined" the novels or stories for me... some of them I came away shaking my head because I'll never get the hours back that I lost reading them.

My favorite is Linda Berdoll - Mr. Darcy takes a wife, and Lizzy and Darcy... I will warn you tho' there are parts of the book I wish she'd had left out. While the Darcy's may have had a great sex life, I would've been just as happy to NOT to have always been in the room with them! (blush) However, it did not get me to put the book down and I would read them again. Mr. Darcys Diary by Amanda Grange is also done well... exact story told from Darcys perception... Good luck!