After the completion of the quest Scream Like a Symphony in the Hoarfrost Castle plugin for the Elder Scrolls IV: Oblivion you now have a series of quests to do to find staff members to fill various vacant positions at the Castle. The quest The Duellist is done to fill the position of blacksmith at the castle.
"Ignatius has recommended a man named Bodean Monsey as an ideal candidate for the blacksmith position at Hoarfrost Castle. He would provide repair and arms and armour trading services for the castle guardsmen and myself. According to Ignatius, Bodean is apprenticed at the Anvil Castle smithy, but feels somewhat limited there (perhaps because he is apparently already a very gifted smith)."
Go to the Dining Room and talk to Vilene. Vilene also says she will be able to function as your housekeeper and cook at Hoarfrost Castle.
On the Desk in Valgus' room is Valgus Hertarian's Diary. Reading it reveals the insecurities that will provoke him into challenging you to a duel. Return and speak to Valgus, choosing the following reply options as applicable in the conversation:
"You have the sunken eyes of a pig!"
"What woman would want a bald man?"
"Your cheeks sag like old sacks!"
Valgus will challenge you to an immediate duel in Anvil Castle Courtyard. Follow him out there, and kill him. He isn't waering any armour, so this shouldn't be too difficult if you are prepared.
Whether you kill Valgus in a duel or by ambushing him he has the following items on him: Duellist's Blouse with 6% Shield, Castle Anvil Key, Castle Anvil Interior Key, Valgus Hertarian's Key and a Fine Steel Cutlass. Your quest log will then update.
"Adviser Valgus Hertarian is dead. With him no longer standing over them, Bodean and Vilene are now free to leave Anvil Castle and come work for me at Hoarfrost Castle. I should give Bodean the news."
Go and speak to Bodean again. He thanks you, and says that he and Vilene will travel to Hoarfrost Castle and meet you there. Quest complete.
"With a retinue of guardsmen in residence, Steward Ignatius has suggested that we now approach people to fill the remaining staff positions at Hoarfrost Castle. He has ideal candidates in mind for each position, but I can talk to them in any order I wish. Ignatius seemed to have something else on his mind, but has refused to talk about it for now, saying we should resolve the staff situation first. Perhaps I should ask him about it later..."
Grand Designs starts after Scream Like a Symphony is finished, but you cannot progress any further with it at that point.
Shortly after completing the quests An Eye for an Eye, Fiery Devotion and The Duellist to fill Hoarfrost Castle's staff requirements, Grand Designs will update.
"All the staff positions Steward Ignatius and I discussed for Hoarfrost Castle are now filled. Perhaps now would be a good time to ask him what was on his mind earlier; what it was he refused to tell me until the staff situation was resolved. It sounded as if he considered it to be somewhat important."
Speak to Igantius. He tells you about a journal that was found, apparently belonging to Furius Hoarfrost, the orginal builder of the castle. He asks you to come to his room to collect it. This completes Grand Designs.
"Ignatius revealed what he was about to tell me earlier: a certain journal - relevant to the mysteries surrounding Hoarfrost Castle - had been found in the keep..."
By accompanying Ignatius back to his room in the Sleeping Quarters and speaking to him there, the final quest in the series Requiem for the Reluctant will start.