[ He knows Aion wasn't going to answer any questions over the Network, and Lilith would have said something if Aion had suddenly moved. Even if Azmaria herself isn't there, this is better than running around town opening doors expecting her to be behind one.
Besides, Aion wouldn't run from a confrontation with him. He was just a weak human now, right? And he doesn't even have any of Rosette's guns with him, just to emphasize that he's here to only talk. They haven't even spoken since before he lost his horns.
Walking down the expansive cathedral's halls, Joshua rubs at his chest, entirely out of breath and looking weary from rushing here. But he yells anyway, hoping to get anyone's attention. Even Lilith. ]
Aion! It's me!