For some reason, after death, Artemis' soul ended up in Tartarus and there she became a concubine with one of the Princes of Hell, named Dalkriig-Hath. Diana had come to her aid, but Artemis accepted her fate.
Despite being raped, beaten and tortured at first, at the hands of her "husband" and possibly other demons, she got used to her "condemnation", and adapted quickly, even managing to achieve some small comfort.
When Diana is tortured for trying to help a demon get punished, Artemis initially turns his back on Diana. However, she felt guilty for abandoning her sister and setting her free. Using a revolt as a cover, Artemis manages to take Diana back to the world of the living and get back to living life.
Wanting to part with her former title as Wonder Woman, Artemis used her skills learned in Tartarus to her advantage and joined a group of demon-hunting heroes called the Hellenders. While there, she was given the codename Javelin, which she quickly rejected by the name Requiem.
Artemis developed a romantic interest in fellow Hellender Sure-Shot, a master of arsenal and projection weapons. Seeing her feelings as weakness, she hid her feelings, though her teammates could still see her true feelings. This interest dropped when she discovered that Sure-Shot's noticeable self-confidence was sparked by psychotropic drugs that were supposed to keep several Hellender members fearless as they battled demons and ghouls.
She also befriended a woman by the name of Henrietta Jessup, who went by the codename Sojourner. Though the Sojourner had no warrior skills to speak of, Artemis stood by her friend and professed her as a novice in the amazon.
After learning that Hellender's leaders had secretly attempted to summon fallen angels to Earth, Artemis saw through the ruse, but it was too late to stop them from summoning her husband. Though the ensuing battle claimed the lives of seven Hellenders, Artemis managed to kill Dalkriig-Hath.
With the help of a horse demon who led a revolt against her dead husband, Artemis revived her fallen comrades.
Artemis' role as a teacher/mentor was later expanded as Wonder Woman asked Artemis to adopt a new student, that of Cassandra Sandsmark who became the new Wonder Girl. Taking Cassandra as a full-time student, Artemis became a reserve member of the Hellenders leaving Sojourner to take her place as a full-time member.
Later still, Artemis's teacher/mentor curriculum would expand to include Supergirl's combat training. It was during Supergirl's initial meeting that Artemis would gain his revenge on Batman for his hostile attitude towards her when he tried to join the JLA. Artemis easily defeated Batman in combat, but was eventually subjected to an advanced calming dart.
The underworld demon Belyllioth, who served as a master over some of Myrmidon's demons, later contacted Artemis to inform her of an unrest in Tartarus.With the death of the demon Dalkriig-Hath, the remaining twelve princes of hell were fighting for dominance over the dead demon realm. As the widow of Dalkriig-Hath, Artemis was by close rights in the rule of her region of Hades. Artemis ended the demonic war by presenting himself before the twelve demonic rulers to be officially granted the station by her ex-husband.
After the blessing ceremony was given, Artemis revealed that the blessing was actually given to Belyllioth, who was magically disguised in Artemis's form. Angered by her deception, the twelve princes of hell vowed revenge on Artemis upon returning to Hades. Fortunately for Artemis, her devoted friend Belyllioth (now officially one of the thirteen rulers of Tartarus) has sworn his loyalty and protection to the Amazon for eternity.