The Dwarves wanted to have a chat with Amberser, which was beyond his expectations.
With the formal negotiations only a few days away, why did Hoffman Ironfist suddenly decide to visit? Knowing that the Elf Tribe lived here, perhaps he wanted to reach some consensus before the official talks.
It seemed that was correct.
The fear in negotiations is always that they will break down, and without any tacit understanding between the parties, it can easily devolve into a heated argument, with extreme, irretrievable nonsense spoken, thus prolonging the discussions considerably.
Hoffman Ironfist's visit this time was surely to confirm the bottom line with Queen Catherine and facilitate restraint during the official talks.
That must be it.
Amberser didn't take it too seriously; after weaving a future of servitude for Queen Catherine, he knew the Elf Queen wouldn't be in any danger, at least not until this war was over.