First of all, remember that Family photo puzzle that detective has to complete? If so that's the topic we are on.
I did the usual, I forgot to unboard that little opening leading down the house like I would usually, so instead I took the photo to finish the puzzle and achieved the key then I hid in the closet off to the side. After the neighbor heard and came and checked the room and left, I went out. I know he was about to come and check the room once more so as a quick ditch effort to not lose the key, I put the key over the boarded up opening in the wall. But the key disappeared with the crow sound effect.
I did not think much of it, and of course the neighbour came in and caught me.
So I turned to scout to check if the key was on they hook, but it was not. So I went back to detective and once again the key was no where to be found.
I searched a bit more and gave up after not being able to find it.
Hopefully this helps, maybe unclear so ask me any questions 
