In the conclusion of the Neanderthal Parallax trilogy, human geneticist Mary Vaughan and Neanderthal physicist Ponter Boddit struggle to make their relationship work and to conceive a hybrid child, while Mary's Earth faces the collapse of its planetary magnetic field and her boss, Jock Krieger, plots against the Neanderthal world. Reprint.
- ISBN10 076534906X
- ISBN13 9780765349064
- Publish Date 1 November 2004 (first published 1 September 2003)
- Publish Status Out of Print
- Out of Print 9 July 2021
- Publish Country US
- Imprint Tor Books
- Format Paperback
- Pages 400
- Language English