First published in 1917. Packard was a Canadian novelist best-known for his series of mystery novels featuring a character named Jimmie Dale, a wealthy playboy by day who dons a costume at night to become crime-fighter The Gray Seal.

The Sin That Was His 2016, Echo Library

ISBN-13: 9781406878752

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The Sin That Was His 2016, Createspace Independent Publishing Platform

ISBN-13: 9781532962998

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The Sin That Was His 2016, Createspace Independent Publishing Platform

ISBN-13: 9781533167590

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The Sin That Was His 2016, Createspace Independent Publishing Platform

ISBN-13: 9781532952470

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The Sin That Was His 2016, Createspace Independent Publishing Platform

ISBN-13: 9781537750385

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The Sin That Was His 2015, Palala Press

ISBN-13: 9781342228000

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