I recently tried to put a friend of mine on a little quest sponged from Dragon Strike (a truly exceptional learning game). He was hired to kill the wizard named Teraptus, I gave him the first name of Shion, by his son, Gilmar, who was teaching at a wizards school. But the whole thing is as follows:
They were hired to kill him by some strange man. They had to find a weapon that could kill Gilmar and then go kill Shion, but when Shion is dead, they find that Gilmar is quite well and wants them dead, because he is now going to ascend the throne of Havis (The dragon strike planet).