London calling?

Enigmatic message left on my answering machine: "This is Dave Henry in England. I'm trying to get some information about Parkinson's. I'll speak to you later on, OK? OK."

This was two weeks ago.

"Watson, what do you make of it?"

"The fact that you don't know a soul in the UK by that name suggests that this person came across you on the internet, perhaps on this very blog. Furthermore, the fact that he tracked you all the way to Alaska suggests intelligence, tenacity, and perhaps, urgency."

"Very good, Watson, But why would he need info from a guy in Alaska, when there are excellent resources in Europe? (for example here) And more disturbingly, why has he failed to follow up?"

"Great Scott! Do you suspect foul play?"

"Either that, or he's having a whale of an "Off" period."

"Blast it, what can we do?"

"We wait, and, one more question, Watson..."

"What's that, old man?"

"Why do we refer to it as an answering machine, when all it does is leave us with questions?"