I was doing the quest when I decided to read the book of memories, when I figured "Why not try giving each item to him?"

Well, here is a result of what happened:

[3:01] You allow Strange Sclavus to examine your Book of Memories.
[3:01] Strange Sclavus tells you, "My memories, I had forgotten..."
[3:01] Strange Sclavus tells you, "Why did I keep asking him. Daliusss my friend, you didn't want me to go, you told me of the danger, but that just made me want to explore the temple more. I was sso foolish!"
[3:01] Strange Sclavus tells you, "I weedled the information from you and set off on my reckless adventure. If only I had listened to you my dear friend. I lost everything that day... I lost my love."
[3:01] Strange Sclavus tells you, "My Lady... I would not have you see me ssso. I would rather you believe me dead."
[3:01] You allow Strange Sclavus to examine your Scrap of Paper.
[3:01] Strange Sclavus tells you, "Open what?"
[3:01] You allow Strange Sclavus to examine your Falatacot Tome.
[3:01] Strange Sclavus tells you, "You must stop her! Others will come! Stop her!"

I think I will try to give him the reward items to see what happens...