As daylight fades around south London, a strange, unrecognisable figure nears the Selhurst Park gates. It flashes across security cameras and looms nearer into view.
On grainy screens, its cavernous, black eyes become clear - as does its Italia '90 England shirt and Hawaiian shorts. With a pink straw hat perching on its rounded, green skull, the figure plants a tripod, kneels and raises its thumb.
It then disappears into the still Croydon night, tapping away on a mobile phone. '59/92,' it tweets. 'The alien meets the Eagles.' And so Crystal Palace Football Club meets Kevin the Alien, alias for committed fundraiser, Jon Goodgame.