Grimrock

In the room that you teleport to where you lift the key and doors open for knights to fight, once you have defeated them you notice an open pit in the corner with a corridor on the other side, how do you get across?

I've jumped down the pit and defeated the foes there and teleported back up again but cant figure how to get across the open pit??? It looks like it has no doors to fold up either.

No matter, found the answer when I went back to game, just needed to be more observant.

What a great game.