First, I apologize if this has already been posted; I searched best I could and did not find anything.
Second, if I use the wrong terminology, I again apologize. It´s been a bit since I got through the game.
To do this trick, you will need
A character with high stealth, object knowledge, and ranged weapons (I believe my character was at level 6 or 7). You will also need Poxellisus´s helm, poison, and a bow with plenty of arrows.
The grey man is located in the snake women´s temple of initiation, in the corridor just before the room with all of the switches (If I remember right). Normally, as soon as you enter the hall, you will see a mostly invisible entity scurry along before you can catch up to him. Normally, you cannot. However, I discovered that , not only can you attack him, but he will occasionally attack you as well!
As soon as you find him, go back to a previous save. From this state, sneak to the corridor where he is located, though stop just as soon as you can see him. With luck, he will not detect you or move. Poison your active arrow quiver and start firing. I cannot say for sure that you need poison, but it may be that he does not take damage from normal attacks. At any rate, it will take quite a long time for him to "die".
I say "die" because he never goes away. However, you will notice when he has regenerated; you probably will advance at least two levels. Seriously, this guy gives off a ton of experience points. As an added bonus, you can do this as many times as you like. Feel free to easily get up to level ten.
I have managed to do this several times, though it was a tedious process to get it all correct and have him not notice me. And yes, though it was VERY rare, he did attack me. This wasn´t so great, however, as he is invicible and doesn´t go away. I think I managed to get him stuck in a corner, fortunately.
At any rate, has this been done before? Or are there more efficient ways of doing it?
bref je crois qu´il a réussit a atrapper le fantome dans le temple des illusions,aprés pour une utilité quelconque je n´ai pas tou compris.