"The Atheist in the Attic," published here in book form for the first time, is a tense and vivid novella about the top-secret meetings between the mathematical genius Leibniz and the philosopher Spinoza, caught between the zombie-like horrors of the cannibalistic Dutch Rampjaar and the brilliant "big bang" of the European Enlightenment. Plus...Equal parts history, adventure, and analysis, Delany's 1998 classic "Racism and science fiction" combines scholarly research and personal experience in the troubling if triumphant true story of the first major African-American author in the genre.