 Some editions give it the title "Extro".The novel was nominated for the Nebula Award for Best Novel in 1975 and the Hugo Award for Best Novel in 1976.In the future, a band of immortals (some who are famous historical characters, some who have tried their best to avoid becoming so), including Herb Wells, Ned Curzon (nicknamed Grand Guignol), Hillel, and Sam Pepys have only one requirement for membership