So. It's done.
Yesterday afternoon I pressed "Send" and then sat back, exhausted. And was completely useless the rest of the evening.
It happened like this a couple of months back, when I sent the revised book proposal for Will's Treason - Shakespeare and the Gunpowder Plot off to my agent. That had taken me two full months to research, write and revise.
And now, same goes for Commanding Youth - The True Story of Arthur and the Fall of Britain. Weeks of work, then off she goes.
So now what?
Wait and see ...