This is neat. I rolled up an bequest from an angelic-demonic father-mother, in a neighbourhood of labyrinthine and haunted towers the ‘house’ is particularly ostentatious - and mobile.
Already there’s the idea that the ‘house’ was ‘parked’ there to conceal it, or to otherwise evade pursuers - although it clearly stands out from the crowd. Maybe whatever haunts the neighbourhood provides a double-edged sword of protection.
Perhaps the ‘house’ was set there long ago, and the other towers had built up around it. The player(s) want(s) to take the mobile tower for a spin, but first must diplomatically clear a way from the neighbourhood before flying/scuttling off - ramshackle towers all leaning on each other in a Kowloon Walled City style, some enemies are to be made when some are inevitably collapsed as the ‘house’ makes it’s slow way towards the city’s borders.