As the Sentinels stand poised to launch a nuclear strike against the rest of the world, the X-men decide to alter history by sending one of their team back in time to prevent the assassination that started it all.
- ISBN10 0679861815
- ISBN13 9780679861812
- Publish Date 22 March 1994
- Publish Status Active
- Out of Print 13 July 2011
- Publish Country US
- Imprint Random House USA Inc
- Format Paperback
- Pages 365
- Language English