Lili, an apprentice of the legendary Nimway, the Lady of the Lake, lives among the magical spirits of Fey Forest. Lili has magic in her soul and the knowledge of enchantment and spells. But there is one magic she cannot command - the magic of the Human Heart. Of all those in the world of Fey, there is but one boy who can help her... Awed by the splendour of King Arthur's knights, seduced by tales of glory, Percival has a fantasy of his own. But to safely embark on a quest for the legendary Holy Grail he will need the help of an angel. Only Lili can take them far beyond the limits of their home, and closer to everything they cherish most. Yet to survive in the Human world it will take more than a passion for adventure, more than a desire to change their destiny, and more than the counsel of the shining giants of Arthur's court. It will take an understanding of the pure magic that lives in the heart of... Percival's Angel.