How do you get in the sewers in the game Professor Layton and the curious villagrs?

i know the man hole is in located in on park road but everytime i click on it it won't let me in. :( any help? ten points.How do you get in the sewers in the game Professor Layton and the curious villagrs?
You can't get into the sewers until Chapter 7



This step by step illustrated guide shows you everything you need to do to get the manhole open

http://professorlaytonwalkthrough.blogsp鈥?/a>



Also note that you have to use the shoe to go down rather than tapping on the manhole

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