Arazhan knew the twilight zone was the fourth world, an abode to undead creatures like ghouls. The place is forbidden to the living, only permitted entry for the souls of dead people. According to Betaal, his body is dead, and Dusen's soul has occupied his body in the twilight zone.
"I will help you find a way to get into the twilight zone, Master. But.." Betaal spoke, his gaze fixed upon Arazhan, a sinister grin playing on his lips.
"State your demands!" Arazhan cut to the chase, fully aware that Betaal wouldn't lend his aid without a favour in return.
"If you can help me break my curse, I will help bring your soul and the girl's soul back," Betaal revealed.