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bickie 's review for:
Spy on History: Mary Bowser and the Civil War Spy Ring
by Enigma Alberti
Good story; DIY code-cracking might be challenging for younger readers. Not really suitable for library use due to the envelope of several code-cracking tools (red plastic, code wheel, vellum with cut-outs, etc). I am sure the pieces will be easily lost and that the envelope holding them will not stand up to repeated use.