If Abels alive, this could nullify Cains crime and therefore the mark and the curse.
Hes also pleased to hear that his brother is Hells oldest resident.
Do you know how many times Ive tried to tell peopleAbelis the asshat?

Credit: Ray Mickshaw/FOX
No one ever believes me!
Bree, assistant to Hollywood producer Alexa Lee, opens a box containing a bomb and is grievously injured.
When they notice her vacant bed, Lucifer acknowledges, Imayhave misplaced your brothers soul.
Pierce isnt happy, particularly because the mark is still on his arm.
Pierce isnt concerned; his conscience is clear as it pertains to his brother.
But they still need to track Abel down.
They agree not to loop Chloe in on this mess and turn to a different source: Maze.
Oh, God, Abel.
You never forget your first, she purrs.
Lucifer wants to know where Abel would go if he thinks this is another Hell loops.
Maze describes him as a bit like a caveman Lucifer before handing over a bunch of dollar bills.
And sure enough, theres Bree-Abel (Breebel?)
A jock, a nerd and a princess save the planet?
I mean, come on, he scoffs although he did gain 196 Twitter followers since the movie premiered.
But she actually uses it to kill the man whos arrived poolside to shoot her.
Amenadiel chastises Lucifer for his recklessness in bringing back Abel and angering God.
Plenty, Amenadiel reminds him, and leaves to keep trying to send Abel back to Hell.
Chloe, the over-identifier of the week, says she knows that feel.
Then when Alexa says only Brees fingerprint can unlock the office file cabinet, Chloe wonders what Brees hiding.
Mmm-hmm, sure, you over-identifier.
At Lucifers loft, Pierce manipulates Maze by telling her that Amenadiel wouldhateit if she helped him.
Maze hops right on board and says Abel would occasionally do something Maze never saw coming.
But Pierce explains that this isnt a Hell loop.
Youre alive, brother.
Behind him, Maze pantomimes her head exploding.
Neither of them is wooed by this offer.
Breebel explains, I would do anything to avoid returning to that hell.
If you had been there, you would do the same.
I dont know what itll take to stay out of that place.
Im trying my best, but I dont know if itll be enough, she chokes out.
Linda calls this a brave start, and dang, Tricia Helferkillsthis scene.
Im so, so glad shes still a part of the ensemble this season.
Lucifer wants Chloe to clear out and leave Breebel for the bomb squad, but Chloe refuses.
While this is happening, Maze is engaging Amenadiel in a fight to keep him out of Lucifers way.
Lucifers bummed because he had the perfectPlungesequel title:2 Deep 2 Plunge.
(Hes wrong, though; the superior sequel title is clearlyThe Plunge 2: Plunge Harder.)
Thats nice and all, and yet…Chloes acop.
Lucifer definitely brings danger into her life, but she still has plenty of her own to begin with.
Maybe dial the guilt back a notch, Luci.
In the end, Cain and Abel part as almost-friends.
Lucifers fine endangering himself, but he cant risk Chloes life anymore.
Pierce says thats fine because as long as Abels alive, he still has hope.
Aaaand at that moment, Breebel crosses the street and gets nailed by an ambulance.