I can see Westminster Bridge in the misty distance. I draw the frowning sea serpents coiled around the globes of light, and the green lions holding circles in their mouths along the curved wall. I turn the page. I am learning the scene. I draw quickly in black ink, the spiky towers, the distant bridge, the curve of the water, the lions and dolphins in squiggles and the pavement under the trees, with the castellations of the palace behind. On the bench is a man. I am making him up. He is hunched on the bench.