Vasthelm Quest Series
Like the Crusader Quest Series, this is started by speaking to Crusader Lord Marraldor in Castle St. Graecius. The series takes place around the Nord settlement of Vasthelm in the north of Dibella's Watch.
The Road to Vasthelm
This is started by speaking to Crusader Lord Marraldor and asking him "Do you have any alternative missions?"
Make your way to Vasthelm Castle in Vasthelm and talk to First Minister Jaen. He tells you to go and speak to the princess, who is in the Princess' Quarters, but is only available between 5AM and 9PM.
Castle Hoegborg is full of various undead and mages. Completing the quest will require finding various keys in order to open the various locked doors in the castle.
Now go back to Hoegborg and unlock the Hoegborg Upper Halls with the key you just obtained. There are two areas that can be reached from the Upper Halls. The Hoegborg Dining Hall has the Hoegborg North Halls Key on a Silver Plate on the table. In the South Tower go up the ladder to the top of the tower and then use the exit to Dibella's Watch. There is a Chest with the Lord's Quarters Key inside it.
Go back again to Hoegborg and unlock the Hoegborg North Halls. Make your way through them to the Old Lord's Quarters and unlock them with the key from the South Tower. Enter and kill the Hellrise Greater Skeleton.
"I have secured Cerize a suitable bed to heal in by killing a most monstrous being inside the Old Lord's Quarters. This place should be safe now though, so I now need to go get her here."
Now return to Crusader Cerize and speak to her.
"I am bringing Cerize to the Old Lord's Quarters."
Escort her to the Old Lord's Quarters and lead her to the bed, then speak to her again.
"Cerize is now resting. I should search these quarters for clues as to what might have happened to this castle and why. There must be something in here."
On the bookshelves is the Hoegborg's Lord's Journal, which wasn't there when the room was visited earlier. Read it.
"I've found the old castle master's journal, and it explains in some sick words how this castle came to meet the fate it has. I've read it with great interest, and almost lost track of time. I shall now wake Cerize again so we can continue our escape from here."
Now go and speak to Cerize, then make your way back to Hoegborg. There are monsters again in the areas previously visited, including more Hellrise Greater Skeletons. Talk to Cerize after defeating the two new Hellrise warriors in the entrance hall.
"Cerize and I are now going through the great gate in the entrance hall. I wonder what we'll find on the other side."
Go into Hoegborg Great Hall through the now unlocked door and kill the two Hellrise Greater Skeletons in the room. Search the bodies as one has the Guard Barracks Key on it. Go to the Guard Barracks off the Great Hall; the Smith Key is on a ledge to the right near the entrance door. One of the two Valkyries who accompanied Cerize is in here, dead.
Speak to him, and he unlocks the trapdoor to the Laboratory, and takes the two notes from you. make your way through the Laboratory to the exit, which requires the Hoegborg Exit Key found in a Chest here, and, once back outside, speak to Cerize, which finishes the quest. She suggests that you check to see what is happening at the Vasthelm Bridge, which will start the quest The Winter War.