Though he was willing to forgo his return to Alderaan and accompany Bel Iblis on his mission to Darkknell, the senator sent him back to Organa with firm belief that Aach would be needed elsewhere.
Aach appeared in the Star Wars Legends novella "Interlude at Darkknell" by Timothy Zahn and Michael A. Stackpole, which was published in the 1999 anthology Tales from the New Republic. After the 2014 reboot of the Star Wars continuity, the 2016 canon reference book Star Wars: Rogue One: The Ultimate Visual Guide, a tie-in to the film Rogue One: A Star Wars Story, established that Cassian Jeron Andor, one of the film's protagonists, had used the code name "Aach" as a senatorial contact on Darkknell.
Aach appeared in the Star Wars Legends novella "Interlude at Darkknell" by Timothy Zahn and Michael A. Stackpole, which was published in the 1999 anthology Tales from the New Republic. After the 2014 reboot of the Star Wars continuity, the 2016 canon reference book Star Wars: Rogue One: The Ultimate Visual Guide, a tie-in to the film Rogue One: A Star Wars Story, established that Cassian Jeron Andor, one of the film's protagonists, had used the code name "Aach" as a senatorial contact on Darkknell.
- The Complete Star Wars Encyclopedia