The first thing to be said about Mike Batt's The Hunting of the Snark (at the Prince Edward) is that it is not the total musical fiasco most of my critical colleagues would have you believe. This is not another Carrie, or Bernadette, or Time. Rather it is a $5 million attempt to take Lewis Carroll's nonsense verse about the Jabberwocky and the quest for the invisible monster and turn it into some kind of stage entertainment for children of all ages from 7 to about 13.