Friday 13th August 2021, 12.35pm (day 3,641)

On Friday 13th, let’s go ghost-spotting. This spectral figure appeared from round some old cotton-spinning equipment in a former mill at New Lanark, Robert Owen’s planned industrial settlement in the gorge of the River Clyde. Or maybe it’s just a projection in one corner of the museum, visited as we made our way to Scotland to begin (finally) a summer holiday. But whether put on for the tourists or not, it’s still a ghost, in some form.