I collect first edition Debut Crime and Mystery novels by women. My little passion. I love seeing what those femme-fatale scribblers are putting out there and I also like supporting them in their initial efforts in a very tough occupation.
My absolutely favorite debut novel was Mallory's Oracle by Carol O'Connell. Brilliant is the only word.
A close second was Cornelia Read's A Field Of Darkness. Original and unique.
Off genre (and sex), was discovering A Confederacy Of Dunces. The debut and only novel by John Kennedy Toole. Sadly, he committed suicide after efforts to publish it failed. His mother went from publishers to professors for years, trying to get someone to see it's brilliance. An English Prof did, and brought it to the right publishers. So sad that he did not hang in there to see it's reception.
What was the debut novel, or novels, that made you sit up and scream "Genius" at the top of your lungs? The ones you will always remember and cherish?