As The First Lantern, Volthoom, attempts to bring the universe under his control, many beings in the Green Lantern universe try unsuccessfully to stop him, including the black lantern Hal Jordan. As Hal is being tortured by Volthoom, Sinestro calls onto the fear entity, urging it to take Sinestro's as its host. However, unlike previous hosts, Sinestro is now able to control the fear entity. However, Volthoom proves to be too big of a match for the Parallax wielding Sinestro alone, but is able to destroy Volthoom once Nekron, using Hal Jordan as it's life line is able to put an end to the First Lantern.
Sinestro later uses his new found powers to seek and kill the Guardians of the Universe, before disappearing into a self-imposed exile and eventually losing control over Parallax and setting the entity free.
