Agent Texas will be consuming the Youngdrink and end up in the caves. She will make a valiant attempt to escape, and hopefully will make it safely to the surface before the eruption.

Once the ash begins circulating through the air she will revert to the size of a 12-year-old girl, which is something she never was in canon. But her body is organic and can be de-aged this way! She'll actually be desperate to be reverted to normal size. It's bad enough she doesn't have her robot, but now this?