Ah. Well, there we were today, searching the spot we thought Watson was at, but it seems we were being misled. Someone left a message for us in the sky, as well as sending a photo through:
We did think for a moment Anderson took the picture, i know, but then after scanning the photo, we found a name in invisible ink:
So, now we have our captor (surprise surprise, who knew it'd be you?), but we still have to find Watson. If he was almost blown up in a day, who knows what's happening to Watson after 3 days. However, there was a drawing attached with the note. This /has/ to be from Watson:
See if you can work out where he is from these signs, and keep tuned. I feel there may be one last message from Moriarty.