Viktor gives Wylan a few days to get settled in Cadens before sending him an invitation to the workshop. The truth is that he's never exactly mentored anyone before (if that's what this is), and taking on a potential employee is a little different than being a TA at the Academy. Still, he wants to foster an interest in science the way he was indulged, as a child, and it takes only a short conversation with Wylan to realize that they probably have a lot in common.

So, an invitation. True to form, Viktor works up until the moment Wylan arrives, not even getting up from his stool when he realizes someone is at the bay door.

"Oh, good. You're here." Instead, he makes a little gesture to indicate that Wylan should let himself in. "As much as I enjoyed the party--" (He did not) "--this is much more suited to our purposes, yes?"