Master of the Sidhe — Kenneth C. Flint

Now the final battle approaches. The races of Erin join to free their homeland from the foul Fomor and their nightmare engines. But the evil lord Balor plans a fearful vengeance, and captures the sea-god Manannan MacLir. On a deadly mission go the Champions of Eire: young Lugh, the Master of the Silver Warriors; his beloved Aine; the fearless Taillta; Morrigan, the Raven warrior-woman; Shaglan, the Pooka Shapeshifter; the mighty Dagda and his brave son Angus.