Ive been stomping around the place with my n.o. fighter and morte after just finishing the escaping of the dead catacombs. I was actually wondering how i get past the locked door in warrens of thought that leads to drowned nations.

I can't use my strength to break it open with a crowbar, and i don't have annah yet as you don't get her later. I haven't played this game in a while and i know that theres a way around this part, i just don't remember.

Does anyone know how you get a key to open the way to drowned nations, or any other way to get there. I don't really have any other problems with the game, its actually a lot of fun so far. Thanks.

I usually go to the dead nations next which is the South East exit in the catacombs.
Then from dead nations I can go to drowned nations or the warrens via the two exits.

Other than picking the lock in the Warrens i know of no other way to open it from the Warrens side first b4 dead nations.

Oh cool, so where on the dead nations map is the drowned nations. Is it the lower left corner thats locked?

Lower right, look here...
http://www.sorcerers.net/Games/Torment/Walkthrough/act3-underground/underground-dead-nations.php
The exits are locked until you get permission to leave or steal the keys.