guest of the Lee sisters. So don't expect insider gossip here about Harper Lee's sexuality or a big revelation about why she never wrote another novel after "To Kill A Mockingbird." Instead the two most startling disclosures Mills makes are that Lee liked to go to Atlantic City and play the slots and that she called Truman Capote a psychopath. Capote, you might know, was Harper Lee's childhood friend - immortalized as Dill Harris in "To Kill A Mockingbird." Together they worked on Capote's masterpiece "In Cold Blood" but he became consumed by envy over Harper Lee's astounding success. Rather than warmed over gossip, what "The Mockingbird Next Door" does offer is a rich sense of the daily texture of the Lee sisters' lives. By the time shemoved to Monroeville, Mills had been diagnosed with lupus and was out on disability from The Tribune. Consequently, she entered easily into the world of the Lee's and their gray-haired crew. All of them shared aching joints and free time to talk about books and local history - to go fishing and take long car rides in the country. Mills says, she had to watch herself with Harper who had more of an edge than her sister Alice. Whereas Harper could shut down a conversation with a frosty stare or a few choice cuss words, Alice comes off as gracious, grounded and principled. During her long legal career, she was a steady proponent of the civil rights movement - prompting Harper Lee to refer to Alice admiringly as