Following a near-fatal flying accident, Dudley Chalk is placed in a medically-induced coma. Before being taken to hospital, while still lying broken and tangled in the material of the paraglider he so recently failed to fly, another version of Dudley appears. The new version of Dudley watches dispassionately the scene unfolding before him, then enters a world of his own. As one Dudley is taken to hospital, the other finds himself standing in a place called Arlingberry Forest.And so...