While Nero was still on the run Apollo was aware of his every move but still could not understand why the emperor would let him escape. So, for now, he remains observing.
To make sure he won't do anything he might regret he decided to give his mind something to be occupied with. That is the repeatedly mentioned party that he is still having problems making. However, even with his lack of communication skills, he still wants to do it since he already made a promise.
So now Apollo sat in Professor Adolfo's dimly lit office; he was quiet, thinking how their demonic professor actually has a taste similar to old people. Lingering in the room is the scent of aged parchment and ink filling the air. Across from him, Professor Adolfo had his attention on a book, looking like an aged yet sharp-eyed scholar, an image that was directly opposite to how Apollo knew him.
