Tantalizers #11: Envy, Hatred and Malice

From Tantalizers: A Book of Original Logical Puzzles (1970) Envy, Hatred and Malice are the Fellows of St Jude s who teach Astronomy, Biology and Chemistry. Each has written a perfectly scurrilous novel, the titles being Xanadu , Youth and Zip . The biologist s novel is outselling Envy s. Zip is outselling the astronomer s. Xanadu is outselling Hatred s. And [ ]