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Obscuria is in trouble! Join the Bureau of Mysteries as they puzzle their way out of a Mechanomancer disaster.

About the Author

H.J. Harper is a children's author who lives in Melbourne. By day she works in a bookstore, spruiking her favourite wares; by night she writes stories about zombies, movie stars, ninjas and robots. H.J. Harper is the author of the Star League series and Bureau of Mysteries series.