Roberts, a longtime student of Joseph Campbell, has written an alchemical parable and exploration of cosmic myth in the guise of a children's fable. Visiting the worlds of six different fantasy classics in turn, Bertie and his stuffed monkey Bongo exemplify the Jungian process of individuation as they interact and learn and grow. In Vol. 2, they conclude their voyages after adventures in Sherlock Holmes's London and the Land of Oz.