I played through the game myself. Just fininshed yesterday.
The horn worked OK for me. Later in the game I simply used
'War Cry' to manipulate the skeletons into the teleporter.
How do you know it did not work? I think those mummies will
attack very persistently. If you use the horn many times while
standing in front of a mummy, you should be able to get him to
turn or back away. Can you try this and see what happenes?
If you cannot get them to turn away with the horn, let me know.
Perhaps we can figure a way for you to ship me your saved game
and a trace file so I can duplicate the problem here.
Meanwhile, I will try it again.
PAul
prsteven@facstaff.wisc.edu
P.S. You can complete the game without it.
I managed to get through that area the first couple of
times I played the game without any 'War Cry' or Horn or
anything! I did not know about them. I would get a mummy
close to a door then run around to the other side of the room
where he could not see to follow me, Once in a while he would
enter one of the cells accidentally and when I came running back
I would close the door. It took forever.