In the waning days of eighteenth-century London, poet, artist, and printer William Blake works in obscurity as England is rocked by the shock waves of the French Revolution. Next door, the Kellaway family has just moved in, and country boy Jem Kellaway strikes up a tentative friendship with street-savvy Maggie Butterfield. As their stories intertwine with Blake's, the two children navigate the confusing and exhilarating path to adolescence, and inspire the poet to create the work that enshrined his genius.