I think that the next world should be of Valencia/celeria skyway and then krokotopia because for the storyline it says that in port regal there's a stormgate to Valencia and in Marleybone it says that part of the stone is krokotopian which leads to my little transcript of after Aquila that I wrote in my comfy bed now back on topic
that in Valencia way back when it said that the books were in celeria