Six Feet Under

Siegfried gives Geralt this quest at the beginning of Act III. People have been disappearing in the cemetery and the Order would like to get to the bottom of it. They do not have the manpower to spare, so a witcher's help is required.

Walkthrough
At the very beginning of Act III, Geralt finds Siegfried at his new post outside the Cloister, just up the hill from his old post. They chat and while catching up, Siegfried mentions that he could use the witcher's services to investigate the mysterious disappearances of townsfolk in the cemetery. Being the obliging soul that he is, the witcher agrees and heads over to the necropolis.

Once inside, he finds evidence of ghoul activity, but then finds more nefarious traces -- the corpse of a woman has obviously been stabbed and not eaten. A few random encounters with some ghouls later and our hero comes upon a particularly unusual sight: a talking ghoul named Vetala. They chat and then our hero must them decide whether or not to allow the ghoul to live. If he spares him, Vetala tells him who is really responsible for the disappearances: the Scoia'tael.

There is a unit of elves and dwarves over by the cemetery crypt. The witcher goes to intercept them just as they are about to leave. They offer him a choice: stand and fight leaving the people they kidnapped to die in the crypt, or allow the Scoia'tael to leave and save the innocents inside.

After that, all that remains is to report back to Siegfried. If Geralt decided to save the innocents, Siegfried will be more pleased with him as that is the nobler option and reward him more generously.

This concludes the quest.

The Cemetery
People are disappearing at the cemetery. Siegfried asked me to investigate. I should have a look around. Siegfried asked me to investigate the strange disappearances in Vizima's Cemetery.

The Commando
I let the ghoul Vetala go. In exchange, he told me that an elven unit is killing people in the cemetery. I should find and annihilate them. I should find and destroy the elven unit.

A Choice
I found the murderers, but they have given me a terrible choice. I can fight them or try to rescue the people they left at the mercy of the ghouls in the crypt. I doubt I can do both... I can either fight the elves or rescue the people from the ghouls.

The Rescue
I found the people in the crypt. I should speak to Siegfried. ''I saved those trapped in the crypt. I should speak to Siegfried.''

Siegfried Satisfied
I figured out the disappearances, and Siegfried was happy with my choice. He said human lives are most important, and his troops will hunt down the murderers. He was so happy he upped my reward. I figured out the disappearances and Siegfried was happy with my choice.