Part 4
The Sibylline Sisterhood started chanted and held out the painted eyeballs to the bonfire and a violent shaking is happening.
"What is happening, Doctor?" Jo asked.
"Preparing for something worse."
Miles away, the Brigadier and Benton are still stalling the Pyrovile while Mike Yates and the mayor of Liverpool led the evacuation. "We can't keep doing this all day!" Benton said as he tried to shoot the Pyrovile.
"Don't worry. I think he's about to be tired by now." the Brigadier said. Just then, they saw some of the people who are evacuating Liverpool felt something weird and the next thing the Brigadier and Benton knew, they started to turn into Pyroviles.
The people of Liverpool also saw this and they ran out of the city as fast as they could. Other UNIT forces responded quickly and tried to lead the converted Pyroviles out of the city as best they could. But one of the pyroviles hit some of the UNIT forces and all of the Pyroviles escape.
"Just when you thought you it could get easier, danger finds a way to make the situation harder." the Brigadier remarked. He later saw Captain Yates running to him as he dodged the Pyroviles. "Did you get everyone out of Liverpool?" he asked.
"Yes sir. With the exception of ones turned into the monsters, everyone quickly left the city." Captain Yates replied.
"Good, let's just hope the Doctor is able to solve our problem now."
In the caverns, the Doctor and Jo watched as the Sibylline Sisterhood continued chanting the spell of turning humans into Pyroviles. "The eruption has begun, Doctor. And there's nothing you can do to stop it and the conversion of the human race." the speaker for the high priestess said. The Doctor quickly got a device from his pockets to try and reverse the sisterhood's conversion. But the speaker of the high priestess shot it right off the Doctor's hand with a fireball.
"I always thought I have the fastest hands when it comes to drawing something out of my pockets." the Doctor remarked.
"You thought it will be that easy, Doctor. Well, see if you find this easy." The Sibylline Sisterhood started a new chantings which caused a giant Pyrovile right behind the high priestess.
"That's the biggest monster I have ever seen." Jo said.
"Oh, with him that size, I say he's about he's almost done with his teen years." the Doctor remarked.
"The world will burn and reborn from the ashes." the Sibylline priestess said. "We have envision a perfect utopia for a new race of humans and we will watch them flourish. Join us, Doctor. You and your friend will survive the new world."
"Never! Even if your plan is a peaceful solution, I will never join something that makes people unwillingly change into a species of destruction."
"Then so be it." The Sibylline priestess ordered the giant Pyrovile to grab the Doctor which leaves Jo the only one standing.
"Jo, get out of here and warn the Brigadier about the Sibylline Sisterhood." the Doctor told her.
Jo nodded and tried to leave the place but the Pyrovile blocked the exit. "This is your last chance, mortal. Join us and we leave the Doctor unharm." the priestess said.
Jo remembered that she brought along the miracle pills with her since the Doctor told her to bring it. She looked at the bonfire and thought of something that might endanger them both or won't work at all. Jo took a step closer to priestesses and threw the bag of miracle pills into the bonfire.
"No, Jo!" the Doctor shouted as she threw them.
The priestesses tried to get the miracle pills out the fire, but it was too late. The miracle pills turned into ashes instantly. The caverns started violently rumbling and the giant Pyrovile crumbled into dust and the Doctor fell to ground alive.
"How did you know those pills will lead to their downfall?" the Doctor asked her.
"I... don't know really. I think it's because I don't want them to use those miracle pills for their master plan."
The caverns continued to rumble and the place is starting to fall apart. "You! Don't you know what have you done!" the Sibylline priestess sneered at Jo, "This isn't over, Doctor. We will meet again soon enough." The Sibylline Sisterhood raised their arms up and started to disappear along with the high priestess.
"Wait!" the Doctor said as he tried to stop them from disappearing, but they already left as the Doctor ran to the spot where they stood.
"Doctor, we have to leave this place now!" Jo exclaimed.
"Right. Right. I almost forgot. Come on, Jo." the Doctor told her.
The Doctor and Jo ran quickly as fast as they could to get out of the caverns and dodged every falling debris that goes in their way. When they left the caverns, they saw the mountain fell down to the ground. The Doctor looked around and found no trace of the Sibylline Sisterhood and the Pyroviles' remains of their lair in the rubble of the caverns.
"At least we didn't cause a volcano eruption." Jo said.
"Yes. The only thing that might cause more destruction than some combustions is us causing a volcano eruption." the Doctor said, "Now come on, we have to meet with the Brigadier."
Back in the Liverpool streets, some UNIT forces tried to shoot some of the converted Pyroviles, but it still didn't have any effect on them. While the Brigadier, Sgt. Benton, and Captain Mike Yates try to lead some of the Pyroviles out of town. After doing that for almost 15 minutes, UNIT noticed that the Pyroviles were shaking weird. It was then that the Pyroviles were turned back to humans. The people looked like they didn't seem to remember that they were turned into Pyroviles once they were turned back to normal.
"It seems to me that the Doctor has stopped them." Sgt. Benton said.
"It most certainly is." the Brigadier said, "Captain, tell the mayor that it is safe to come back and that they don't need to worry about any spontaneous human combustions anymore." the Brigadier told Mike Yates.
"Yes, sir." Captain Yates replied.
Just then, the Brigadier saw Bessie with the Doctor and Jo in the vehicle as they drove back to the city. When the Doctor and Jo came out of the vehicle, the Brigadier saw the two covered in smudges in their faces. "Good heavens, did you and Miss Grant left us and return back to UNIT HQ just so you could fix your blue box?" the Brigadier said.
"What makes say of that?" the Doctor sarcastically said, "Anyway, you don't to release your steam on us since we mostly save your skins today."
"Honestly, Doctor. I don't know why I give in to your remarks all the time." the Brigadier said and walked away.
"You know, if he holds his anger in all the time, he might have a spontaneous combustion." the Doctor joked.
"Oh, stop it now." Jo said and laughed.