Here we have a classic mistake: the yes/no question. By all means, ask these when a simple yes or no will actually suffice--but our asker doesn't care if Gible is hard to find, asker wants to know where to find one. I probably should have said something like "Yes, Gible is nearly impossible to locate so good luck!" Instead:
a97 Gible can be found in the basement of Wayward Cave, where it has a somewhat low encounter rate.