Ned Henry is a time-travelling historian who specialises in the mid-20th century - currently engaged in researching the bombed-out Coventry Cathedral. He''s also made so many drops into the past that he''s suffering from a dangerously advanced case of ''time-lag''. Unfortunately for Ned, an emergency dash to Victorian England is required and he''s the only available historian. But Ned''s time-lag is so bad that he''s not sure what the errand is - which is bad news since, if he fails, history could unravel around him...