You wouldn't have to be thanking me now... if you'd handled the situation a little differently than you always do... flying right into the thick of things. You're faster than a speeding bullet... slow down... and use that super-brain once in a while. The night... the shadows... those are my domain. The backstreets and back alleys... they're my territory. Leave them to an expert. The world almost lost Superman... because of his foolish impetuosity. I'll save your neck any time... but I won't write your epitaph. Think about it. 
- — Batman
World's Finest #323 is an issue of the series World's Finest (Volume 1) with a cover date of January, 1986.
Synopsis for Superman and Batman: "Afraid of the Dark"
When Metropolis is engulfed in darknes from magic origin, Superman is victimized by a the villain named Nightwolf, who terrorizes the city with the threat of killing the Man of Steel. Learning of this development, Batman investigates Nightwolf's background and learns that the magic powers come from an ancient belt he stole from some Mexican Ruins. Posing as a shaman and using tricks from his Utility Belt, Batman confronts Nightwolf and takes the criminal out of action, retrieving the magic belt and saving Superman in the process.
When the Man of Steel recovers, he finds that he has been saved by Batman and he is about to thank his friend, but Batman tells Superman to stop charging into things without thinking. On a rather harsh turn of events, Batman realizes he can no longer work with Superman and each of them go their separate ways.
Appearing in Superman and Batman: "Afraid of the Dark"
Featured Characters:
Supporting Characters:
- Monica Zehringer (Flashback and main story)
Villains:
- Nightwolf (Single appearance)
- Phantom Wolves
- Powerbroker (On a TV or computer screen)
Other Characters:
- Alfred Pennyworth (Phone call only)
- Metropolis Police Department
Locations:
- Gotham City
- Metropolis
- Mexico (Flashback only)
Items:
Vehicles:
Notes
- Although this is the final issue of the series, the end wasn't supposed to be permanent as indicated in the cover. On the paragraph written by editor Janice Race in the letter page, she explains that the higher-ups at DC Comics decided to stop the publication of the comic, but that they would eventually resume publication after the concept has been reformulated. However, the events that transcended in 1986, made it rather impossible to start publishing something remotely similar to World's Finest. Namely there was the conclusion to the Crisis on Infinite Earths, which created a whole new continuity and there was also the rise in popularity of Batman as a dark character, born out of characterizations like the one in the Batman: The Dark Knight Returns, where Superman and Batman don't get along at all.
See Also