9781429906692 | 1 edition (St Martins Pr Griffin, April 1, 2007), cover price $7.99
9781593979430 | Abridged edition (St Martins Pr, May 30, 2006), cover price $14.95 |
About this edition: When an unknown virus strikes the United States, Jonathan Smith, an Army medical researcher, escapes several assassination attempts, only to discover that his fiancâee is one of the victims, and that all his research is being blocked.