Fintan's Tower

Jamie was at the library looking for a book that was different, one he could get lost in. But he didn't mean it literally. . The Book with his own name in it leads Jamie and his sister Jenny into the Summer Country - a world of magic and danger, where even time behaves strangely; where Fintan's Tower has held its prisoner since the days of Camelot, and will keep Jamie and Jenny, too, unless Jamie can read the book right . . .