
She falls in love with Andrew Peters, a handsome young American who was in the group with her on their journey to the facility. Hilary Craven successfully passes herself as Betterton's wife Olive, because he is miserable and wants desperately to escape.

The scientists are not allowed to leave the facility, and they are locked in secret areas deep inside the mountain whenever government officials and other outsiders visit. The fabulously wealthy Mr Aristides has built the facility and lured the world's best young scientists to it so that he can later sell their services back to the world's governments and corporations for a huge profit, after having removed the scientists' resistance through lobotomies. The destination turns out to be a secret scientific research facility disguised as a modern leper colony and leprosy research center at a remote location in the Atlas Mountains.

Soon she finds herself in a group of travellers being transported to the unknown destination of the title. The task, which she accepts, is to impersonate a dying woman to help find the woman's husband, Thomas Betterton, a nuclear scientist who has disappeared and may have defected to the Soviet Union. Hilary Craven, a deserted wife and bereaved mother, is planning suicide in a Moroccan hotel, when she is asked by British secret agent Jessop to undertake a dangerous mission as an alternative to taking an overdose of sleeping pills.
