01-20-2021, 05:05 PM
Examining the shell doesn't reveal a lot. You could probably make some shell armor from it. The shell does have a 5 hardness (even though it says it's hard as stone) and 8 hit points as well as provides the creature with +5 natural armor. While actual stone has 8 hardness and 15hp per inch. The adventure does not mention a price for the shells.