Marion Zimmer Bradley wrote an interesting
novel about the
Trojan War from the
perspective of
Cassandra. This was as
brilliant an idea as her
retelling of the
Arthurian legend from the point of view of
Morgaine.
It's an excellent literary device to have one character who knows what is going to happen but isn't believed - it's a sort of reversal of the suspense novel. Unfortunately, it turned out to be a strong concept with a weak execution.