Who's the Culprit???

So my hubby informs me yesterday that I am not to make any plans for Friday. That's fine, I think. Expecting him to explain this demand, I am sorely disappointed as he says, "see you after work".

Well, according to hubby this person is a co-friend of ours and they are sworn to secrecy! THE NERVE!!! Anyway, needless to say, I am frequently finding my brain wandering to the question: "who might be coming?" I know they called from New Brunswick...I do not know their gender, however the majority of our friends are female, but that doesn't mean anything. Anyway, my mind keeps working...and if I dont' figure it out by Friday I'll find out then!

Any hints???