The Hibernation Realm of Sylas' Vipermancy Profession was orbiting the Beast Heaven randomly—this much was true. However, it was orbiting in very specific areas nonetheless.
It wasn't a coincidence that it had been in Azurex territory before. As a Profession tailored to Serpentes, it only orbited in Serpentes territory.
So, if Sylas appeared in the belly of a creature… it wasn't a surprise that this would be the belly of an Ancient Serpentes.
This was likely a good part of the reason Sylas had figured out what was going on. His intuition toward an S-tier was certainly vague—especially so if that S-tier was a God. However, the vague inklings he got allowed him to use his own personal knowledge to piece together the reality he was in right now.
It also helped him deduce certain things about the S-tier's current state.
