When she turns eighteen, Lady Truthful, who goes by "Newt," will inherit the Newington Emerald, bestowing on her magical powers. Before her birthday arrives, the Emerald is stolen. Disguised as a man and sets out to recover the Emerald and has the adventure of a lifetime.
Birthstone Series: Emerald. Photograph. Britannica ImageQuest. Encyclopædia Britannica, Inc., 25 May 2016.
http://quest.eb.com/search/119_1786333/1/119_1786333/cite. Accessed 4 Oct 2016.