| Springer Verlag, November 25, 2016, cover price $599.00
| Pap/psc edition (Springer Verlag, November 25, 2016), cover price $875.00
, titled "Forbidden Summit" | Berkley Pub Group, December 1, 1997, cover price $6.99 | also contains Forbidden Summit
| About this edition:
When NORAD intelligence officer Frank Hannon reports four unidentified aircraft in the skies over North America, he is puzzled by the lack of response from his superiors--until he realizes he has discovered the ultimate government secret.