No. You can find the scroll in the upper floor and for the answer you'll need to pickpocket the message he has on him. It'll tell the name of his father which you'll need to open up the parchment chest to get the scroll. To open the chest you'll need to use the chest so you'll get into a dialogue option where you'll be given a couple of names. Write his father's name and it'll open.
I did this without ever speaking to Arhu(I actually forgot to find Arhu).
Last edited by HybrideZalm; 22/09/17 09:12 AM.
