Bug in the quest Suspicious Toys?

[Fulmicot1]

I figured out that it was Arfur assembling the toys i went to talk to him at the inn.

After a quick conversation it becomes clear that he had been forced and that the real culprits are those of the fireworks shop.

But after Arfur leaves the inn, it still says "interrogate him" in the quest list.

So I went in Felogyr's Fireworks shop, talking to the owner there are no dialogues of any kind to accuse him of the crime committed...

Also in this mission there are no indications in the map, which I found very strange.

Are there any bugs? Is there any way to end this?

[Fizzgig]

I think you need to get to the upstairs of the shop, I never did because I couldn't figure out how to without aggro-ing the whole shop.

[Seagal]

There's more information you could have gotten out of him, or off his dead corpse with Speak with the Dead. There's a pass code phrase to let Firework shop know why you are there. There should be a quest marker indication on the map if you get that info.

But you know there's something going on there, so I'd guess if Arfur is gone already you can sneak your way up to the top levels and trigger something. But, there's no peaceful way to resolve that quest, and I don't think there's anything notable up there either like loot wise.

[Fulmicot1]

I tried various ways and i think its a bug:

1-If you kill Arfur, the body is not willing to talk to whoever killed him

2-I've tried all the dialogues at my disposal and there's no way to get him to confess directly where he got the explosives

3-I explored the fireworks shop undetected using gale with invisibility, but nothing

4-In the end I tried to directly attack those who are inside the shop, once the last henchman is defeated, the mission is completed, and only at that point is the mission updated saying that "arfur has confessed"

5-I tried to steal in Arfur pockets too but it has nothing interesting