Good old Ray... My life-long buddy...! He swore... He would beat me... At something... And he was... Right...! He's going to... Beat me to... The grave...! 
- — NRG-X
Superman #340 is an issue of the series Superman (Volume 1) with a cover date of October, 1979. It was published on July 16, 1979.
Synopsis for "The Night of the Walking Bomb!"
Superman discovers he has merely been covered by a steel shell, breaks out of it, and continues his search for N.R.G.-X. N.R.G.-X in the meantime tracks down CURE and his friend Ray Ryker. In the final battle with Superman N.R.G.-X self-destructs in space. Grant Haskill is left comatose.
Appearing in "The Night of the Walking Bomb!"
Featured Characters:
- Superman (Flashback and main story)
Supporting Characters:
Antagonists:
- N.R.G.-X (Grant Haskill) (Grant's Mind) (Flashback and main story) (Final appearance) (Apparent Death)
- Ray Ryker (Final appearance)
Other Characters:
- Sidney (Final appearance) (WGBS Cameraman)
- Laurel Kenyon (Flashback and main story) (Final appearance)
- Grant Haskill (Human Form) (Final appearance)
- C.U.R.E. (Committee for the Unconditional Regulation of Energy) (Unnamed) (Flashback and main story) (Final appearance)
- Jack (Single appearance)
- Doctor (Single appearance)
Locations:
- Space
- Earth
- Shady Point Nuclear Generating Station (25 miles north of Metropolis) (Flashback and main story)
- Research Laboratory (In ruins) (Flashback and main story)
- Metropolis
- Metropolis General Hospital
- Grant Haskill's Room
- C.U.R.E. HQ (Destroyed) and (Rebuilt)
- Galaxy Communications Building
- Hercules Health Spa
- Metropolis General Hospital
- Shady Point Nuclear Generating Station (25 miles north of Metropolis) (Flashback and main story)
- Earth
Items:
- Exo-Skeleton (Flashback only)
- N.R.G.-X Suit (Final appearance) (Destroyed)
Vehicles:
See Also