[digs]

That would be the Crucible trilogy - by far my favourite Sara Douglass books. I should also probably add that Sara Douglass is in fact a medieval historian; it has to be said that her writing based in that period (which the next two books after Hades' Daughter are) tends to be far more enjoyable than some of her other works. Actually, now that I think about it, Hades' Daughter is the exception in that series as there's very little/no actual history for Douglass to draw on. The following three books are all based more solidly around recorded historical events.

If you really didn't enjoy Hades' Daughter, I urge you not to give up on Sara Douglass! Try an earlier book of hers called Threshold, a stand-alone novel which is one of my favourites (and quite different in concept to The Troy Game novels).