Awhile back I read about in a fictional book a person who had no cooking utensils placed a gutted, cleaned fish in clay and baked it, and afterwards broke the pottery on the outside to get the fish out. If someone were to really do that
A) would it work? If so how long would it take?
B) What would the benefits of doing so be over skewering the fish and cooking it over an open fire? and
C) What would its flavor be like (i.e. would the clay impart any flavor in and of itself above any beyond any seasonings used on it)?