It's possible I might have used one, but I remember I died going up there before I got the earth one, but luckily I was able to get by there after I got the earth one. Now I don't have any fangs left, so I might have used it there then died b/c the next one maybe was for earth. Well, I'm in Eureka now, so I don't need them anymore, right, and I don't have to worry about getting stuck, right?