Nautilus Shell Horn Belongs to: The Ocean Calls

Nautilus Shells could be used to create a horn-like item. When used underwater, nearby living Nautilus creatures within a limited radius would swim toward the player. It would not spawn or teleport them, only attract ones already nearby. Zombie Nautilus should not respond. This would give Nautilus Shells another thematic purpose and make it easier to regroup with Nautilus creatures during underwater exploration.