The Water and the Wild (The Water and the Wild, 1)

For as long as Lottie can remember the only people who seem to care about her have been her best friend Eliot and the mysterious letter-writer who sends her birthday gifts. But now strange things and people are arriving on the island Lottie calls home and Eliots getting sicker with a disease the doctors have given up trying to cure. Lottie doesnt know what she can possibly dountil a door opens in the apple tree. Down through the roots is another worlda world of treacherous beautiful impossible magic that just might lead to a cure for Eliot.