Marilyn Monroe 's darkest secrets – from her spiraling drug use to the conspiracies surrounding her death – are revealed in a new book tracing how Hollywood's brightest starlet became a drug-addicted wreck, RadarOnline.com can reveal.

The Last Days of Marilyn Monroe , by bestselling crime author James Patterson, 77, and British writer Imogen Edwards-Jones, 61, has been published as fans mark 63 years since Monroe's mysterious death in Los Angeles in 1962. Article continues below advertisement

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The actress, who was just 36 when she left the world reeling with her passing, remains one of the most mythologized figures of the 20th century, with more than 3,000 books already devot

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