QUOTE (Faelan @ Feb 21 2013, 09:17 AM)

Umidori has the right of it. The only way to get rid of a mark is to kill the horror, die (which in some cases is just a new cadaver man), or some way the GM decides to make possible, on a one time basis (say a passion takes an interest in the characters).
My question is, is the whole party marked? If so I see this as a fantastic opportunity for you. Why would you want to get rid of it? Do they even know they are marked?
Also for all things Earthdawn go here
http://www.fasagames.com/ Even if you are using 2nd Edition you are likely to get an answer from someone familiar with the product.
First, it's a D&D 4e game. After finding that someone had statted a wormskull already (
here), I just had to use it. I figured it'd make for a nice recurring villain, someone they would have to work at undermining without directly confronting. Turns out it was a TPK, thanks to how I ran the encounter.
Everyone except the one PC who has a Dragonmark (it's an Eberron thing, if you're familiar with it) ended up horror-marked. It was off-the-cuff, but I just decided that horror marks and dragon marks didn't mix.
Why get rid of them? Well, there's the problem that I didn't do my research. I went and re-read the old wormskull entry, but I didn't read about ALL the effects a horror mark can have: auto-renewal, invisible and unknown, and the riders about how you can command, talk to, or harass anyone who ended up marked. Now, my players don't know half of these abilities. I could, theoretically, write most of them out... But they already know the damn things last a year and a day.
If it hadn't been for the TPK, at least one of the players was talking about going to ground and the game just halting for a year and a day.
I decided to showcase one of my favorite iconic critters from another setting... And it's ended up being me writing myself into a corner to just solve the TPK to begin with. And now I have a PC who wants their own dragon mark, but they're horror-marked, which means they can't manifest for at least a year and a day. The whole thing has been a fiasco, but I'm not the type of GM to load from a save point and call a do-over. I made this bed, and I've been trying to figure out how to lay in it.
So, yea, the core issue to solving my problem was, "Can this be done before the year and a day is up, without facing him down again? No? And he can renew it any time he wants, if he's within 100 miles? ... Sigh."
The Passion idea might work, though... I just swap "Passion" for "Soverign Host..." <goes off to read some wikis and get my rulebooks for ED out>