Create a subrule of “The Sea Chart” entitled “Blackwater Beast”, containing the following text:

There exists a Blackwater Beast, whose location on the Sea Chart is privately tracked by the Elder Judge. There is an atomic action called Moving the Beast which only the Elder Judge can perform, and consists of the following steps:

* Change the Beast’s location to a non-Shore cell that is adjacent to its current location, selected privately at random. For the purposes of this rule, an adjacent cell is one that is a single horizontal, vertical, or diagonal step away.
* Roll 1DICE2. On a 1, the Beast Bellows.
* If the Beast Bellows, then the Beast’s location at the time of the Bellow is revealed on the Sea Chart and any Fishing Contestants on or adjacent to the Beast’s location gain 2 Madness. Fishing Contestants who are located on Shore cells are unaffected by the Beast’s Bellow.
* Make a Story Post on the blog explaining whether the Beast Bellowed and whether any Fishing Contestants were affected.

If the Elder Judge has not set the Beast’s initial location, then they should do so by randomly selecting a non-Shore cell and revealing its initial location on the Sea Chart. If it has been over 44 hours since the last time the Elder Judge has Moved the Beast or set the Beast’s initial location, then they should Move the Beast at their earliest convenience.