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The book chronicles Upton Sinclair's intriguing experiment to validate his second wife's claimed psychic abilities during her struggle with depression and interest in the occult. It details her attempts to replicate 290 drawings made by her brother, with Sinclair reporting 65 accurate duplications, 155 partial successes, and 70 failures. Accompanied by original illustrations and extensive commentary, this edition also includes a new biographical preface about Sinclair, originally praised by his friend Albert Einstein in its German release.
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