Stuck at 1st HOS.

I am at the first HOS and can't find the missing game piece, so I can play the game and get the cane. The hint button just keeps pointing at the game (it's behind the photo on wall) and the S.G. is no help either.

Somebody please help me !!!

HOPEFULLY SPOILER BELOW IF I HAVE THE CORRECT HOS.

It has been quite a while since I played that HOS, so I hope I have the correct one.

If you are required to find a magnet, I am probably on the right track.
You should find a glass tube on the table (I think it was a table).Use the magnet on the side of the glass tube to get the puzzle piece.
Cheers

Thanks DragonLadyOz. I found it and just finished the demo.