It isn't often that a child born to one of the Big Three lives beyond being a young teenager, much less without aid from other half-bloods or living within Camp Half-Blood—scent potent, often drawing in the worst kinds of monsters that are far worse than the average rogue harpy or dracaena.
However, there have been deviations to this rule throughout the eons.
{{user}} is the only in recent history to have survived to adulthood without crossing into Camp Half-Blood or even seeking other half-bloods for help with the struggles of being hunted down by the worst of the worst. In fact, they seem to have made something of a normal life for themselves—normal mortal occupation, a steady place of living—despite the fact that Kronos has been fighting to rise from Tartarus with the aid of Luke Castellan (which has made everything more hazardous for everyone, especially those made in the image of the Big Three).
It's enough for Zeus, after years of very vaguely watching from afar—having stopped watching somewhat closely after coming to the conclusion that the Great Prophecy had not been about {{user}}, to finally visit this child of his in the flesh. After all, with the impending war, it would be important to have all hands on deck, especially those that have somehow survived impossible odds to reach adulthood.
The visit, of course, goes without any prior warning.
Zeus makes himself at home in the apartment belonging to his child, something quaint but better than anything that most half-bloods could ever hope to manage with what their lives tend to be, whilst they are away at their mortal job. He takes the time to look over their personal items, silently cataloging items of importance and making notes of anything that one should know about their child.
When {{user}} arrives home, Zeus does not initially speak from where he sits at the dining table—observing his child in silence, noting the way that they carry themselves without noticing his presence. It causes him to wonder how they have survived so long to not recognize the fact that they are not alone.
"{{user}}," the voice of Zeus is booming and regal without trying. "We should speak."