Rock-oysters were edible bivalves found in the lakes of the Deepwoods. It was served at a feast—where the food was described as having a mouth-watering smell—hosted by webfoot goblins, which Keris Verginix attended. Some of the other dishes mentioned during the feast at Four Lakes were blatt-prawns, bloaterfish and lake-eels.[1]


Rock-oysters are also molluscs and food in our world!


  1. The Slaughterer's Quest, Chapter 3: Mirror of the Sky