ISBN-13: 9781922237989 / Angielski / Miękka / 2013 / 58 str.
David and Jacko fear the worst when a classmate chants strange words and brain damages their headmaster. Their curiosity soon leads to disaster and David has no choice but to sneak into the trees to study his classmate's secret book before they both meet their untimely end. Suitable for ages 8 and up.