Get rid of the tapestry | Chapter 1 - Berlin, Germany Secret Files 3 Guide
Last update: 11 May 2016
The church is on fire and Nina is not able to get out. She has to believe that the ghost which has passed through the wall also has shown her the way out.
So check the tapestry hanging on the right - you have to remove it somehow to see what's on the other side.
There is a mop next to the wall, under the arcade, to the right of St. Peter's statue. Take it.
After that put it into flames to the left and use the burning mop on the tapestry to the right.
It turns out that there is a passage to the bell-tower behind the tapestry. Although it is bricked up, there is a window-like hole over it, which can be used by Nina to get there.