Cross Blackfriars Bridge at twilight and think Dementors drifting above the Thames

https://cashgwkj692.timeforchangecounselling.com/how-to-get-harry-potter-studio-tour-tickets-in-london-uk-tips

Cross Blackfriars Bridge at twilight and imagine Dementors drifting above the Thames, as metropolis lighting flicker like lumos inside the fog.