Peace, Love, and Homicide
Teleport to the woods and talk with the hooded man by the portal . He will order you to kill one of the villagers. He can be found at the end of the golden trail .
In order to kill him, take out your sword  and press down on the D-pad to turn off the safety mode, which stops you from attacking neutral characters . After two hits your target will die and you will be able to return to your employee to collect the prize.
Requirements: Peace, Love, and Homicide
After teleporting to Mourningwood, follow the golden trail to the Dark Sanctum, where a hooded man will ask you for 5000 gold for research. If you give him the money, a new mission will appear in a couple days.
This time Lesley will ask you to clear the temple of monsters which are attacking the workers . Go down and kill all the monsters in the room with the sculpture . There's going to be a lot of enemies, but a few area spells should do the trick. You can also run around the room and shoot from the rifle, but it will take more time. Once you're done, talk with the hooded man again.
After a few days of excavations, Lesley will ask you to find the lever used to activate the furnace . The man will give you the key to the Dark Sanctum , where you should head at once.
The entrance to the location can be found on the top of the stairs, behind the large stone sculpture . Move forward until you reach some platforms with blue arrows which you should already know .
This time only one arrow per platform works  and the others summon skeletons. To avoid the fight, follow the pattern: straight, left, straight. After going up the stairs and defeating an obligatory group of Hollow Men, you will reach another blue arrow .
Step onto the first platform and move forward all the time . On the other side, fight some skeletons and activate the stairs on the left. Go down, turn right twice and you will reach another staircase .
It will lead you to a room with a sarcophagus . Raise the lid, pick up the lever and defeat the skeletons .
Now you can return to Lesley and collect your prize . Pull the lever on the left to burn the poor fellow standing on atop the furnace .
Bored to Death
Two old ghosts  will ask you to dig up a book from their mother's grave in Millfields. Teleport there and follow the golden trail to the cemetery .
Your dog will find something by one of the tombstones. Go there and pick up the Normanomicon . As you pick up the book, Hollow Men will start rising from the graves .
Kill the incoming groups with the Boneshredder until a bigger skeleton attack you . He will summon minions every time he's left alone, so you have to kill him first. To do that, start running around the nearby tree . This way you will approach the enemy from behind and don't need to fight his minions.
Once the boss dies, go into the crypt from which he came . A book need in a different mission is inside. Pick it up and return to Sam and Max at Mourningwood .