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"Common Denominators" is the 17th issue of the official Young Justice spin-off comic series. It was released on May 30, 2012.


Tagline: Heroes and Mentors


Star City
September 6, 20:12 PDT

Green Arrow and Artemis are on patrol when they spot the tampered security systems on the Star City World History Museum. They go in, but are ambushed by a group of heavily armed robbers. One female robber takes a snake dagger from its display.

Green Arrow uses a flash arrow to blind the thieves, but their leader gets away. Artemis tries to stop her with an oil slick arrow, but it only stops her remaining two henchmen. They make it to the roof, where the woman boards a helicopter. Green Arrow shoots a tracer arrow at it, but it's discovered and deactivated. Artemis reveals her oil slick had microbeads with GPS trackers in them, allowing them to track the thief after all.

Central City
September 7, 16:39 CDT

Flash called in Kid Flash to help him with escaped animals. They round up a cheetah that had been running wild in the city, and then save bystanders in the Central City Zoo from being trampled. With the people safe, they herd the animals together and create a ditch around them to contain them.

Two guards arrive to tranquilize the animals, and notify the heroes there's something wrong in the reptile center lab. They find it crawling with monkeys, but manage to store them all in a pen. They return to the lab, because Flash had noticed something missing: a sample of concentrated cobra venom. Kid Flash notices a footprint, size twenty-four at least, and discovers it contains a pollen not native to the Central City area. He suggests his mentor analyze it in his lab.

Gotham City
September 11, 21:48 PDT

Jason Burr is working in the Gotham City Observatory when he is attacked from behind and sedated. A large man carries him out, but they are discovered by Batman and Robin. The dynamic duo try to stop them, by swinging in the orerry and crashing several of its planets on top of the criminals. Batman is knocked out when the big thug, still bearing their target, knocks a planet at him. Robin tries to attack him from behind, but the criminal lands a punch in his face.

When they begin to stir, the large thug and Dr. Burr are both gone. Batman tries to stop the other henchmen from taking a pill, but is too late. Robin stops one, and Batman immediately interrogates him.

September 12, 21:57 CDT

The three heroes and their protégés convene in the basement of a Wayne Enterprises-owned hotel, the location of the local Zeta-Tube. They compare notes, and with the tracker, the analysis of the pollen and the interrogation, they've all learned the culprits are in Minneapolis. Specifically, an abandoned new age temple, purchased by Kobra recently. They discover Kobra has placed his twin brother on an altar, ready to sacrifice them in the name of their gods.


A common denominator is an attribute shared by a group of objects, or people. In this case, Kid Flash, Artemis and Robin all team up with their mentors and wind up on cases involving Kobra-related targets. Kobra and Jason Burr are twin brothers (with roughly the same name). Also, both Artemis and Kid Flash's segments end with them saying they had good teachers, referring to their mentors.


Green Arrow
Kid Flash
Unnamed police officers
Non-speaking roles
Jason Burr  
Unnamed Kobra thugs
1 Character debut
0 Speaking debut





YJ Comics On DCU (video 2)

The motion comic featuring two pages of this issue with Jason Spisak and James Arnold Taylor reading their lines as Kid Flash and Flash, respectively.


  • The Gotham City timestamp is labeled "Pacific Daylight Time" instead of its normal Eastern timestamp.
  • Jason Burr's imperial beard is miscolored in fleshtone.
  • When Batman asks if he's okay, Robin replies "Feeling the aster. But fine." It should be "Not feeling the aster. But fine."[2]

Cultural references

  • Flash says he "was CSI before anyone knew what CSI stood for", possibly referring to the CSI franchise that popularized the term. George Eads, who provides the voice for the Flash, gained his fame with the first series.
  • The Wayne Industries hotel is based on the DoubleTree by Hilton Hotel Bloomington – Minneapolis South, the site of CONvergence.
  • The Cult of the Kobra's ritual involving twins takes place in Minneapolis which is one of Minnesota's twin cities.
  • The "Next issue" text is based on the nursery rhyme "What Are Little Boys Made Of?".


For complete answers to the questions in this section, click here.

Answered questions


  • Artemis: Well, what do you think?
  • Green Arrow: That we're going to discuss using arrows that don't up my dry-cleaning bill...
  • Kid Flash: You're having another CSI moment, aren't you?
  • Flash: Kid, I was CSI before anyone knew what CSI stood for.


  1. Christopher Jones (2012-02-14). Coming in May: Young Justice #16. Retrieved 2012-02-15.
  2. Weisman, Greg (2012-12-14). Question #17696. Ask Greg. Retrieved 2012-12-15.

External links