If Mrs. Myrddin was in her chambers, she must have been sleeping. Or, a small voice nagged at Effy, she might not exist at all. It was not a thought she had any proof of, but when she thought of the ghost, her heartbeat quickened.
Then who wrote to the college? Obviously the widow exists because she wrote the college, Ianto talked about her like she is alive, and if she isn't alive then why would he pose as her to write the college, who he is only begrudgingly allowing in?

