What is the object in Professor Layton and the Diabolical Box?

I am playing Professor Layton and the Diabolical Box, and I am at the part where Professor Layton asks Luke to look around Schrader's apartment and tell him what he thinks is out of the ordinary. I CAN'T FIGURE IT OUT!!!|||The window with curtains... circle the side that has a ripped curtain|||Look for something that has been ripped or torn





A picture of the solution can be seen here (this is a direct link to the puzzle)


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





This popular illustrated walkthrough will also help you with anything else