There were some funny antics at the carnival. Az giving Rosette her own advice was cute. That photo is bad news though. There is no way it won't end up coming back in a tragic moment. Not only is that almost always the case in stories but the narrator Rosette even told the reader it was the first and last photo they took together as if to rub it in.
Finally Aion's plan is starting to make more sense! Pandemonium's death wasn't a true death, it was partial and possibly allowed demons to go to the human realm if they hadn't been able to before. However, the freedom they were striving for was still not gained and pandemonium still holds something over them... and to finally kill this idea that is pandemonium it seems they're planning to use the apostles and their access to the astral line to restart the world as they know it. This to probably create a clean slate that no longer has any of these oppressive forces dictating it and thus to give the sinners the 'freedom and release' they long for. Interesting.
It seems that Fi set up the supplies Vid and Jenai brought and now they're going to go get Az and Rosette to truly perform the next step of their plan..