And Peri. DOCTOR: A Spectrox nest? DOCTOR: And a raving egoist. DOCTOR: And you probably know the best way out of here. I've seen dozens die from it. JEK: They can have all the Spectrox they want when I have the head of Morgus here at my feet. KRELPER: We'd have to blow Jek and his dummies first. PERI: He's kidding, isn't he? PERI: Nobody lives forever. Some useful information might have been extracted from them. The perfect android. Wait till Jek finds out.
Plan: A: Sharez Jek; Q: Who rescues the Doctor and Peri from execution? A: Peri; Q: Who does Sharez Jek want to be with forever? A: execution; Q: What did Sharez Jek save the Doctor and Peri from? A: a shine; Q: What does Sharez Jek take to Peri? A: Spectrox Toxemia; Q: What is the name of the disease that kills the Doctor and Peri? A: the Spectrox nest; Q: What did the Doctor and Peri handle that caused them to be poisoned? A: first; Q: When did the Doctor and Peri enter the cave system? Summary: Sharez Jek and his androids save the Doctor and Peri from execution when he rescues them. Then he takes a shine to Peri and wants her with him forever. Later the Doctor and Peri find out they are dying from Spectrox Toxemia, having been poisoned when they handled the Spectrox nest upon first entering the cave system.