In 1586, there was one final plot to make Mary Queen of England
A rich, young, devoted Catholic named Anthony Babington came up with a plan to kill Elizabeth
He and five other men would kill her, rescue Mary from prison and place her on the throne
However, Babington needed to know if Mary supported his plan, so he tried to contact her
He managed to get Mary's servants to hide coded letters in beer barrels that were taken to her room
Mary replied, saying she agreed to the plan
But in fact, Mary's servants didn't work for her at all; they worked for Sir Francis Walsingham, who took the letters straight to the queen
When the code was broken, a group representing Parliament met with Elizabeth and called for Mary's arrest
Although Elizabeth remained hesitant, she had little choice but to act in the face of so much evidence
Mary, Queen of Scots, was about to go on trial for her life