Why is the area around the Tower nifused with planar energy, and why do ghostly figures endlessly wander around it?
The biggest question is what exactly the Mukéye engine does. It's clear that it somehow moves between places, but that's all that can be said for certain. Mukéye's Research Notes, whether damaged or incomplete, don't go into any detail on the exact workings or how he got it working before his death.
As Mukéye went missing three years before the Tower appeared, expert opinion is torn on whether he found the Shifting City and lived there in isolation for three years before activating the Engine, or if the Engine somehow travels through time as well.
No-one has yet been able to reactivate the Engine, and the ghosts make it impossible to spend more than a few hours in the Tower before an oppressive sense of doom and loss of focus forces people to either leave or withdraw into themselves and start to go mad.
Tower out of Time
A building from the Shifting City that appeared out of nowhere outside Jolakefu