My name is Ianto Jones and I am contacting you on behalf of the Torchwood Institute, specifically the Intelligence and Covert Operations department, of which I am the head. I have been researching suitable candidates for positions within the department, and our records indicate that you would be an asset.
I understand that you have questions, so I have enclosed information about the organisation. As you can see, a measure of secrecy is necessary, which is why you have not heard of us before. However, I think that the organisation could prove helpful to you in as much as you would be beneficial to our aims.
If you have any further questions, I would be happy to answer them. Your employment with the Institute would begin as soon as you are available.