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Shortlisted, Popular Readers' Choice Awards 2015, English (Children) Category
Stacy's parents are alive! But where have they been all these years, and where is her uncle, Samuel Oei? Will Stacy, Corey and Colton solve the Enneagram Killer's riddles and find her parents before it's too late? Find out all the answers in this exciting conclusion to the Triple Nine Sleuths series.