You always thought that the Fair Folk were just a myth: Leprechauns aren't real, there's no gold at the end of the rainbow, and there's nothing inside those heather-covered hills but heaps of dirt. But when your brother vanishes into thin air on Samhain night, you start to have your doubts. All signs point to a magical realm contained deep within the hills themselves! Discover the hidden world of the Aos Sidhe in Celtic Lore: Sidhe Hills!