Proclamations of The Giant Squid (1967)
The Polywogs had a character called "The Giant Squid" who incited them to take on the Shellbacks prior to the crossing.  Each night the Giant Squid would make Proclamations that resulted in quite a few Shellbacks getting pummeled unmercifully.  The identity of the Giant Squid has never been proven although I (Phil Carter) got my ass beat special for it!