I seem to have run into a minor problem in this game. I can't get out of the cemetery at night. I have been to Alselmo's grave and got the parchment, but I do not seem to be able to get out of the cemetery. Has anyone any clues on this?

It's been too long since I played the game to remember anything about it but is the grave filled in? If so, you should just be able to leave the cemetery so maybe you just are not finding the right spot?

Check UHS Hints and see if it can help you figure out what you may have missed.
http://www.uhs-hints.com/uhsweb/murderintheabbey.php

Thank you for your replies. As far as I can work out, the grave is filled automatically after getting the parchment. Unfortunately, UHS didn't help.

I went to the walkthrough and did everything in that. I still can't get away from the cemetery. I can get outside the gate, but after that I am trapped.

I don't know what I am missing.

Considering the fact that you are still stuck, I would suggest watching a video walkthrough to see if that can help illuminate the problem. You can find them on YouTube; here is one of them. You will need to figure out which part of the walkthrough is pertinent to your problem.

Many thanks for your help. I didn't know that Youtube would hold the solution. The exit was right down the bottom. I guess I was too impatient and went past the exit sign too quickly.

I am glad that helped you out. I thought it might be some little thing that was holding you up.