>Ravens will starve.
The Ravens here refer to The Ravens of the Tower of London.
According to Wiki:
>"The Ravens of the Tower of London are a group of at least six captive ravens which live at the Tower of London. Their presence is traditionally believed to protect the Crown and the tower; a superstition holds that "if the Tower of London ravens are lost or fly away, the Crown will fall and Britain with it"
According to legends, the Ravens will starve if anything were to happen to the Royal Family.
A couple of months ago, ISIS said that not even the Royal Family will be safe from them.
Then London Mayer Khan welcome back 500 ex-members of ISIS, and said that they do not have the resources to track them all, and to just hope for the best.
Now, Q and the NSA claim to have intel on an ISIS plot code-name 'Speed'.