London, 1792: The Kellaways move from familiar rural Dorset to the tumult of a cramped, unforgiving city. Against the backdrop of a city jittery over the increasingly bloody French Revolution, a surprising bond forms between Jem, the youngest Kellaway boy, and streetwise Londoner Maggie Butterfield.
Their friendship takes a dramatic turn when they become entangled in the life of their neighbour, the printer, poet and radical, William Blake. He is a guiding spirit as Jem and Maggie navigate the unpredictable, exhilarating passage from innocence to experience. Their journey influences one of Blake's most entrancing works.