Octavia E. Butler, one of the first African American science fiction authors to attract mainstream literary acclaim and the first writer in this genre to receive the MacArthur Fellowship (or the “Genius Grant”), died in 2006 at the age of 58. In 2010 she was posthumously inducted into the Science Fiction and Fantasy Hall of Fame.Today Open Road Integrated Media, Butler’s digital publisher, announced that it will publish two previously unpublished stories by the Hugo and Nebula-Award winning writer as an ebook. With an introduction by Walter Mosley, Unexpected Stories (ebk. ISBN 9781497601376, $3.99) will be released June 24 and is available for presale today. The two tales—a novella entitled “A Necessary Being” and a story called “Childfinder”—were found by Butler’s literary agent, Merrilee Heifetz, with the aid of archivists at the Huntington Library, San Marino, CA, where Butler’s papers are housed.