As a nearly full-fledged member of the Agency, the all-female detective unit based in Miss Scrimshaw's Academy for Girls, Mary Quinn, disguised as a poor apprentice builder, must brave the sinister underworld of Victorian London in order to unmask a murderer.

The Body at the Tower 2011, Candlewick Press (MA)

ISBN-13: 9780763656430

Trade paperback

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The Body at the Tower 2010, Candlewick Press (MA)

ISBN-13: 9780763649685

Hardcover

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