Today I took another way home from the gym through the Parson's Nook and onto Liverpool Road. There were more of the pinheads I saw yesterday, not just in the walls of houses but the walls of gardens and some too in the pavements. Why stick a rod through a garden wall? Why embed one in a pavement? What would happen if I were to give one of them a slight tweak? After a few more steps I knew: the scales on the Monkey Puzzle would rattle, the lawns would fold into a concertina and begin to play and the green sycamore buds would burst open, one after the other - each flower a different colour. While underground, the network of water, gas, telephone fibres pipes would switch. Gas would surge from taps, water from the speaker of the phone and from the cooker the sound of the internet would rattle from the hob. I touched one of them and it hummed with power. I decided to move on.