Larian Studios Forums Divine Divinity (English) Help/Tips/Tricks Answer my stupid question please !!!

I'M A NEWBI AND I USE POOR ENGLISH. SORRY.

My question is this.

I am in the hall of council.
and I met the imp that stolen my teleporter stones.
Now I have two teleporter stones.
I clicked the stones but had message "not working ..."
I received "council member quest" but I can't get out of this hall.

QUESTION : How can I get out of this hall?