No. 3

When Reptily reached a much older age, she developed a condition where she couldn't stop talking goofy. She was much revered as a mystic, and gave advice out from under a hair shawl in a Flintstones wheelchair. She could walk, but no longer had to.

Meanwhile, the Shiv priests had replaced their sign with the acronym everyone had come to recognize over the past 70 years or so:

W D

In fact, an eruption had already taken place only 20 years previously. It was anti-climactic. Steam and boiling water, foul gases, not as much magma as you'd expect.