There is a problem in the Le Mort level. If you do not explore both nests, and enter Kronos, you will not be able to exit the level. There is a new Quest map file available that fixes this. You only need this new map file if you get stuck in Le Mort.

http://downloads.sourceforge.net/emr3/Quest0529.zip

Replace your current Quest file with this one. The bug has been fixed, and there is also now Lua code that will teleport you out of that room no matter what. After replacing your Quest file, do the following:

1. Restore from your saved game.
2. Re-save the game.
3. Quit and restore from your new saved game.
4. Jump on the teleporter, and you should go to the next level.