Sewers

Safebox Code
In the sewer part, you get a page with a note on the first door on your right, that page says

NORTH

SOUTH

WEST

EAST

Then on the second door on your right you will find 2 more doors; The door that will be straight will be the one with the safebox, the on your left will take you to a big cylinder. Under that cylinder you will find a plank that every time that is pulled will make the cylinder rotate. You will have to find out the combination of the numbers in the order of the page that you found on the first door of the main corridor.

The safebox code will be;

 51511 1151 5155 51515