For those who may not be familiar with what's basically the Loch Ness monster of the literary world, here's the background.

Harper Lee's "To Kill a Mockingbird," published in 1960, is considered one of the greatest novels of American literature, if not global literature. Over 30 million copies had been sold worldwide as of its 50th anniversary in 2010.

Truman Capote was a childhood friend of Lee's. In fact, one of the characters in "To Kill a Mockingbird" was based on him. And later in life, Lee helped Capote research his best seller, "In Cold Blood," published in 1966.

Lee wrote one book and ultimately became a recluse. Capote went on to write more books and had a storied career. So speculation eventually grew that Capote ghosted Lee's book. After all, if she was such a great writer why would she be one-and-done?

Rumors spread. There were denials.