The White Rose

The White Rose by Glen Cook. paperback edition. ISBN: 9780812533743.

She is the last hope of good in the war against the evil sorceress known as the Lady. From a secret base on the Plains of Fear, where even the Lady hesitates to go, the Black Company, once in service to the Lady, now fights to bring victory to the White Rose. But now an even greater evil threatens the world. All the great battles that have gone before will seem a skirmishes when the Dominator rises from the grave.