William and the Witch's Riddle

William and his little brother, Pinch, have been left alone at their home atop the mountain ever since their mother disappeared and their father went to look for her. When William is visited by a mysterious witch named Morga, it seems their lives might be in danger—unless they help the witch solve a riddle and find a dark family heirloom. William sets out on a quest that leads him into the heart of the Old Forest. There his mother rests in the deep sleep of an ancient curse, her only companions a boy who wakes up a different size every day and a tiny yellow dragon who can dream storms into life. Can William solve Morga's riddle, or will he unleash Morga's curses upon the world?