Former Ponca City teacher Sheldon Russell will be at Brace Books & More at 1 p.m. on Saturday, Dec. 7 to sign his latest historical fiction book titled “A Forgotten Evil.” The story begins in the American West, as the nation heals from the Civil War that nearly destroyed it. New battle lines are being drawn when Caleb Justin, orphaned and grieving, and his comrade Joshua Hart, a tough,…