 TEXT:  i think its a kind of duck, said rincewind from the far end of the long table.  are these biscuits made of something really nauseating, do you suppose? - and then we were rescued at great magical expense -  theyre made of pressed seaweed,snapped the guestmaster.- but then were threatened, also at a vast expenditure of magic - yes, i thought it would be something like seaweed,agreed : rincewind 