SureAI

I went to Dam with erik and entered Clatter cave.
but door is locked.
and i don't know how to do next.
i went ruined room and
I shot several times to the door's lock but notinhg happened.
there was huge space to go through but this
stupid havok engine didn't allow me through low wall.
what should i do?

if you go all the way up to the place whit the two beds you can see the door from a gasp, there you can attack the lok from

Thx.
It needed perfect accuracy.
my bow skill was too poor.