I am about four years into my pendragon campaign and have come across a plot that I want to move towards resolution but have no idea how to do so. So one of my PKs is a lustful pagan knight. During winter phase of 485 one of my other PKs, a female pagan knight, had a rumour and her younger sister was accused of necromancy. The first PK also rolled and his father is missing. Well his fathers dead so I was about to reroll, than a player said, "wait thats perfect" a missing body and an accusation of necromany. So we went with it. Pk one investigates the disappearance of his fathers body and finally confronts the second PK about. The second PK accuses her sister in private who confesses to have been dabbling in it. However when the first PK sees the second PKs sister, he fails his lustful roll and wants to marry her. He promises the first PK that if she marries her sister to him he will make sure it stays hidden and is never outed to the other knights. She agrees wanting to keep her reputation intact.

Second year and PK one again rolls rumours and gets necromancy this time his younger brother, what luck. :( Well its decided that his wife has been slowly corrupting his brother to the ways of necromancy.

Two years later and this whole debacle gets outted to another PK who reports the whole thing to Sir Madoc. First PK is able to save face and feigns ignorance. We decide on some honor loss for him and his sister flees with his brother into the forests.

Winter phase this year and PK one rolls and discovers his wife was pregnant with his child before she fled. On top of that PK 3 who reported them rolls and his father (also dead) is missing. We went with it and PK 3 plans on putting together a posse to hunt down the foul necromancer the next year and put an end to her.

Now I don't know much about necromancers in Pendragon literature and can't seem to find anything. Additionally I don't know how I want this to go down. Should i just make it a straight forward hunt down and burn the necromancer? What other possibly political consequences can I introduce?

Interesting chain of events you have developed. If I were running the game here's what I'd do:

1. Perhaps it's not Necromancy as in the standard fantasy aspect, but instead as part of the spiritual practices of some of the older Pagan deities or Pictish beliefs. In fact, I'd have the players first stumble upon how she originally was introduced to the practice in the first place. A dying druid who had come down out of the north long ago, and had used what they learned from the picts to unnaturally prolong their life -so "they could serve their people longer" -This druid passed on a portion of their knowledge to the wife when they first met, but failed to tell her that in nature all things must balance and that the longer such power is used the more it can corrupt.

2. I'd have the wife and brother travel far north, tracing the Druid's first path via visions and dreams and eventually land in among the more remote and perilous reaches where they become entrusted advisors of a powerful pictish lord. Perhaps the wife seduced the lord and now is becoming the power behind the throne.

3. The Players track their quarry down to the far north but are hampered by the political ramifications of southern knights invading and bringing their style of justice to lands not their own. One or two PK's could even begin to sympathize with the wife -after all, she's not necessarily evil, but just practicing her religion from a different perspective.

4. To complicate matters further I'd have a northern feudal lord involved in very tense trade negotiations with the picts of the area so going after the wife will have possible major ramifications to the trade, stability and peace of the region.

That's my two cents :)

Interesting twists. So we have a wife dabbling in necromancy, a corrupted brother and maybe even an heir in the mix?

Smiler has some nice ideas. Here are some others:
1) The wife is under the control of a necromancer herself and as such duped.
2) The teacher of the wife is a powerful lord in itself. Getting justice may cause a war, neither their lord nor the king is waiting for as he is trying to get an alliance going.
3) The wife needed a innocent child to get a powerful ritual going so she would gain immortality. So it was all her plan to get a husband and as such the child. Maybe the child is part of the ritual and the only way to break it is to kill the child. Would make some nasty trait rolls.
4) Maybe the teacher or the wife is out to get the northern lord involved in a war with the picts to honor his evil gods.

You have to remember the nature of celtic necromancy (http://books.google.com/books?id=UViEbWQOSd0C&pg=PA96&lpg=PA96&dq=celtic+n ecromancy&source=bl&ots=kfYwojHwNE&sig=SbqON0Hu7bA T0xeKnhy_5n7zEI8&hl=en&sa=X&ei=xzqPUpn7Hsq1kQer54C wAw&ved=0CC8Q6AEwAQ#v=onepage&q=celtic%20necromanc y&f=false) is divination, used to know the past and control the future.

It was no accident that she took the body of PK1's father. But was it an accident he fell in love with her? Was the real target of her love spell his brother all along?

And what vengence is she plotting against PK3? I'm sure if everytime he fumbles-- until she's caught -- saying "It must be the curse" will add to the tension.

Her next step will obviously be to acquire the body of Sir Madoc's father or grandfather.

on the other hand necromancy was a legal term in the christian world as early as Charlemagne. it was referred to also as maleficus which (or witch if you like puns) meant Sorcery used with ill intent. eventually this term (11th century) became synonymous with a legal term meaning with Demonic Trafficking. so in my mind a rumor about Necromancy that causes scandal is of this flavor. after all the divination angle is not all that likely to unravel families in a negative fashion.