Josef is part of the Red Flame, a secret society trying to stop street crime in Chicago in 1871. A boy named Wolf is the suspected ring leader, and when the city goes up in flames, the crimes become more serious.

The Secret of the Red Flame 2002, Aladdin Paperbacks

ISBN-13: 9780689851742

Trade paperback

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Secret of the Red Flame 2002, Turtleback Books

ISBN-13: 9780613627023

Turtleback School & Library edition

Hardcover

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