Worldbuilders, the “geeks doing good” non-profit founded by best-selling fantasy author Patrick Rothfuss, will host a Virtual Book Signing Event with S. L. Huang for her new book “Critical Point.” The event will be live on the Worldbuilders Facebook Page at 1:00pm cdt on April 28, 2020.   Fans of S. L. Huang and her Cas Russell novels can purchase signed copies of “Critical Point” and...