After the archery session ended, Ken walked out of the training ground with the four noble goblins, headed to the guesthouses where Roshoka was hosting the parasite envoys and their matriarch.
He had cast a couple of basic scent cloaking spells on himself to ensure that nothing about the Bloodline Extraction technique got leaked. But that very act might attract some unwanted attention. The lack of any distinct scent could cause them to become suspicious that he was hiding something.
Parasites weren't a particularly populous race. Ken hadn't met many of them in combat in his past life. His methods of dealing with them were also thus limited, and confined to higher grade spells.