I have been continuing to work with the coal pigment gathered from the Thames shore back in my studio, producing a series of Carboniferous collages. Thinking about the deep time through which this coal was made from remnants of ancient Carboniferous forests, I drop it into Thames water, letting the coal-paint pool, settle and diffuse on the paper. Dendritic patterns emerge as paint is pulled apart and I combine them to make new biomorphic forms.