The Woman Who Would Be Queen Guest: Sarah Gristwood, author, "Arbella: England’s Lost Queen" Elizabeth I designated her the heir to the throne, but Arbella Stuart's fate had always been threatened by her powerful family. James VI of Scotland got the throne and Arbella's life ended in destitution in the Tower of London. Follow the drama of this spirited woman's rise and fall.  Isabella: The Warrior Queen Guest: Kirstin Downey, author, "Isabella: the Warrior Queen" Queen Isabella was much more than Ferdinand's side kick. She was a powerful warrior queen who reunited Spain but left a bloody legacy that haunted Spain for three centuries.