50 Essential Mystery Novels including The Woman In White by Wilkie Collins, I highly recommend this large tome. It's worth your time. I love a mystery that I am unable to unravel until the author allows. And this kept me rapt until the last.
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Do you aspire to be one of those people who knows at least a little bit about everything? There's any easy way to do it: Read everything! You can't just stick to the mystery novels, anthologies, or biographies you've grown partial to.