Artist Melanie Jackson and writer Angus Cameron discuss the demons that have populated the shafts and galleries of mines around the world through history, and the contemporary example of El Tío (The Uncle), believed in Potosi, Bolivia, to be the Lord of the underworld. There are many statues of this devil-like spirit in the silver mines of Cerro Rico, to whom miners bring offerings such as cigarettes, coca leaves, and alcohol. El Tío is portrayed in recent prints by Jackson and, in a text written to accompany the prints, Cameron draws parallels with the underground and demonic aspects of money and banking, noting that, just as Tío has been an entirely rational and supernatural response to the terrors of the mines at Potosi, so the newly conjured devils of post-modern finance make completely anti-rational sense.