Chi Pi has fallen gravely ill and the only thing that might cure him is something called “zephyr zabaglione.” This is actually a dish, which you can have Floyd make for you. It requires one each of the following ingredients: Thorngerine, Bananza, Moongo, and Rhino Pineapple. The first two can be bought from the General Store, while the Moongo and Rhino Pineapple can be acquired from either the Major or Massive Market Gardens. Once you have all of the ingredients, make a Zephyr Zabaglione and bring it back to Thetis to finish the quest.