In 1940, after thousands of soldiers were rescued from Dunkirk, a group of witches congregated in an English forest. Supposedly, they led a magical assault on the mind of Hitler, and erected a cone of power that was going to prevent the invasion of England.

We all know now, that Hitler never invaded England, and apparently authorities did find evidence of a ritual that was conducted by the local coven of witches, including the bodies of two that gave their lives for the cause.