How do i access puzzle 98 on Professor layton's diabolical box? I already completed the game.?

I can't seem to find this puzzle. I have done 99 but 98 is the only one i cannot find. It's supposed to be in the shop where the bottles are but it won't come up, have i missed the chance? Will the game now forever be unfinished by one puzzle? How annoying. Can anyone help?How do i access puzzle 98 on Professor layton's diabolical box? I already completed the game.?
The puzzle is originally found here

http://professorlayton2walkthrough.blogs鈥?/a>



As you've already done what this walkthrough says you must not have done for the puzzle to appear there, it will be in Granny's Shack, a picture of which can be seen here

http://professorlayton2walkthrough.blogs鈥?/a>



The only things that can be permanently missed are hint coins and conversations