Make a new rule called Obelisks with the following text:

Some actions are defined as Obelisk actions. These are Fishing actions, but have two additional requirements; to perform an Obelisk action, a Fishing Contestant must be in the same cell as a Basalt Obelisk, and as a cost of performing an Obelisk action, a Fishing Contestant must either pay 5 doubloons, or increase their madness by 3.

Churning the Waves is an Obelisk action. The Fishing Contest who performs it should, as an atomic action, clear the list of Disturbances and then Sight Disturbances. This is permitted to be done irrespective of the Next Disturbance time.

Churn the Skies is an Obelisk action. The Fishing Contest who performs it should, as an atomic action, generate a random direction for each Fishing Contestant other than themselves who is not in a Shore cell and a random number of 1-3 for each of those Fishing Contestants, and then move those Fishing Contestants that number of cells in that direction. If one of those moves would result in an illegal move, the fishing Contestant should be moved only as far as is legal (which may be 0 cells).

Churn the Mind is an Obelisk action. The Fishing Contest who performs it may, as a virtual action, be given a number of random letters of The Big One. The number of letters given is of their choice, and should be given in a random order. Their madness increases by 1 for every letter requested after the third, and if more letters are requested than letters in The Big One, they receive all letters in The Big One.