In the end, Renya could not return to the Ever-burning Stronghold with Durin; she needed to have a serious talk with Jacob.
Of the remaining two children, one had already been addressed by people in Sicily, and Cavendish Montes was in charge of Tanya's side. After some consideration, Durin decided to first find the person at the first target's location.
Yes, that's right, Romiel.
This kid has recently resumed his human-like disguised life—there's no helping it, someone like Durin, a tough guy, is not someone anyone can afford to offend, but as long as Durin does not object, the trade between the Circle of Truth and the Kriegern family would still proceed as usual.
Thus, Romiel, this professional broker, after these days, once again makes his dramatic re-entry—his father has also forgiven him, and the kid has returned to being his prince, serving as the anchoring channel between the Sidney Royal Family and the Circle of Truth.