I've just read 'The Fairy Godmother' by Mercedes Lackey. The eponymous
heroine spends most of the book in her world's equivalent of heroquesting -
one of the main plot strands is about whether she dares try an experimental
heroquest to remove a limit on how a Godmother can live. It's fantasy with
romance elements.
Lackey's work isn't to everyone's taste but I'd say this is one of her
better books.
For more details see www.LUNA-books.com
Andrew