D-5X, a probe droid that saw action in the war against Zakuul, was discovered within a shaft located on Makeb by agents working for the Eternal Alliance. These agents revived the droid and equipped it with explosives, with the aim of neutralizing Gethul, a mind-controlling abomination. Despite efforts by the Cult of Gethul to destroy the droid before it reached its objective, the Alliance's soldiers protected it until it was in close proximity to the creature. At that point, they initiated the detonation, which resulted in the destruction of D-5X, but also successfully eliminated the danger posed by Gethul.