Agatha Christie - Murder on the Orient Express

It's not the complete solution, but a help for the door's code.

You have to found 5 numbers hidden in different place.

By talking to Poirot, you know that you have to found them on :

The Rabbit (the fountain - near the white rabbit - Place "O") : 2
Hat Store (between the door and the window - Place "R") : 8
The cat (a store with a picture of a cat : "Art & Gatto" - Place "P") : 4
Soldiers (in front the police near the flags - Place "Q") : 6
Near the gorgone door ( the door to open - Place "I") : 9

So the final code is : 28469