As Elizabeth I's spymaster, Francis Walsingham was determined to bring about Mary's downfall. In 1586, he found Mary was corresponding with a group of Catholics lead by Anthony Babington. The group were plotting the death of Elizabeth, and Mary's involvement would lead to her execution.

First broadcast:
25 January 2002

Students could do some research into the Babington Code and could then create their own secret code to send a message about Mary Queen of Scots.