Seventeen-year-old Ruby Thomas, newly responsible for her two young nieces after a devastating tragedy, is determined to keep her family safe in the vast, swirling world of 1920s New York City. She’s got street smarts, boundless determination, and one unusual skill: the ability to throw a ball as hard as the greatest pitchers in a baseball-mad city.From Coney Island sideshows to the brand-new Yankee Stadium, Diamond Ruby chronicles the extraordinary life and times of a girl who rises from utter poverty to the kind of renown only the Roaring Twenties can bestow. But her fame comes with a price, and Ruby must escape a deadly web of conspiracy and threats from Prohibition rumrunners, the Ku Klux Klan, and the gangster underworld.Diamond Ruby “is the exciting tale of a forgotten piece of baseball’s heritage, a girl who could throw with the best of them. A real page-turner, based closely on a true story” (Kevin Baker, author of Strivers Row).

Joseph Wallace is a baseball historian and author of four previous non-fiction books about baseball as well as many short stories published in book anthologies and Ellery Queen's Mystery Magazine. He lives with his wife and two children in Westchester County, New York.