hybrid. The process results in a mutated humanoid creature with fingers tapered to points, a large, exposed brain and a single eye set in a face framed by six thick tentacles. The voice is an amalgam of human and Dalek characteristics. Sec then orders that hybrids should be created having human bodies and emotions, coupled with Dalek intelligence, to eradicate the Daleks' obsession with universal supremacy which has led them to the brink of extinction. Believing that Daleks should remain pure and Sec is now a traitor to their race, the other Cult members bind it in chains and adjust the conversion process to produce hybrids which are completely Dalek in nature. Sec is killed preventing Cult member Dalek Thay from exterminating the Doctor. The episode "Asylum of the Daleks" (2012) introduces the Dalek planet Asylum where a young woman, Oswin Oswald, has become trapped following a spaceship crash. A nanogene cloud, designed to convert all other life forms to serve the planet's security system, completely transforms her into a Dalek to preserve her genius-level intellect for Dalek use. Oswin is initially unaware of her condition, having created the self-delusion of continuing humanity to protect herself from the horror of her situation. Ultimately she is able to overcome her re-emergent Dalek personality and assist the Doctor and his companions to escape the planet. She perishes when the Daleks destroy the Asylum from space. Mental Hybrids In The Evil of the Daleks (1967) the Daleks trap the Doctor into identifying the "Dalek Factor", which determines their species' unquestioning obedience to Dalek ideology and aggressive, pitiless nature. With the aid of a "converted" Doctor they plan to impregnate all of humanity throughout Earth's history with the Dalek Factor, transforming them into "Human Daleks". When, in the story, some Daleks are implanted with the "Human Factor" they lose their aggressive traits and begin to question authority, leading to a catastrophic civil war. In the two-part story "Daleks in Manhattan" and "Evolution of the Daleks" (2007) the Cult of Skaro attempt to rebuild the Dalek race using Human-Dalek DNA to "format" the brains of thousands of captured people who have had their minds erased. The scheme fails due to the contamination of the Human Daleks with the Doctor's DNA, causing them to question their orders and Dalek ideology. After two of the Cult members are destroyed by the Human Daleks during a fire-fight, the