I'm looking for a good title for the 'head of the secret service' in a fantasy setting. The character's role in court is roughly equivalent to that of Lord Walsingham for Elizabeth I but he was 'Principal Secretary' which is not a very evocative title. 'Spymaster General' or similar feels rather blatant. This is an unofficial role but one that everyone knows he holds, so I could do with a 'job title' that acknowledges it in a slightly sideways or 'doublespeak' sort of way. I'm racking my brains... any ideas?