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[[Hunters ]] watch as [[Hell Ghosts|ghosts ]] hit the magical barrier constructed by [[Belphegor, ]] like fireworks in the sky. They note the hits are coming faster.

In the graveyard [[Rowena ]] tells to the Winchesters, [[Castiel ]] and Belphegor how her [[spell ]] will strengthen the barrier. She needs a quiet, [[ghost ]] free place near the epicenter. so they head , and is taken to the Carver mausoleum where [[Sam]], [[Dean]], and Castiel first took refuge. On their way they pass by the massive hole [[Chuck ]] created that leads to [[Hell]].

Rowena tries to cast the spell, but she is overcome with the ghosts’ rage and falls down in anguish -- exclaiming they’re all going to die. Rowena explains that there are too many ghosts and they are too strong. Belphegor walks out, and Castiel follows. He goes to the rupture and says he has an idea, but that Castiel won’t like it.

Inside, Dean preps for battle, telling Sam he isn’t giving up without a fight. Sam is overwhelmed, but Dean is angry. Belphegor walks outreturns and explains his plan, which involves [[Lilith’s Crook]] which is in [[Lilith's Chamber]] in Hell. Belphegor explains that the crook is actually a horn, that when blown will draw in all the escaped inhabitants of Hell. Rowena then says she can close the rift like healing a wound after the souls are inside. She needs Sam’s help, as he’s close to a seasoned witch. Someone will need to throw the “bomb” into the rift while she and Castiel followsSam stay protected. Dean volunteers. He goes Belphegor offers to get the rift crook, and says claims he has an ideaneeds protection, but that looking to Castiel. Dean agrees leaving Castiel won’t feeling like ithe must go.

InsideMeanwhile, Dean preps [[Ketch]] wakes up in the hospital. He is about to leave when he is attacked by the [[demon]] [[Ardat]]. She wants Belphegor, who Ketch was meant to kill for battleher. When Ketch won’t give him up to protect his friends at any price, telling Sam he isn’t giving up without a fightArdat kills him by ripping out his heart. Sam is overwhelmedAs the spell supplies Rowena needs are brought to the crypt by the hunter [[Stevie]], but Ardat texts Dean is angryfrom Ketch's phone and Dean unwittingly reveals the details of their plan.

Castiel and Belphegor prepare to enter Hell through the rupture, with Belphegor returns taunting Castiel that the Winchesters don't care about him. Castiel pushes Belphegor into the hole and explains his planjumps in after. In Hell, which involves they find Lilith’s Crook (actually a horn) Chamber, which is in Lilith chambers in Hell. It’s being ransacked by a horn demon that when blown will draw in all the escaped inhabitants of HellCastiel quickly dispatches. Rowena then says she can close Belphegor explains that the rift like healing horn is safe inside a wound after box with [[Enochian]] warding. Castiel realizes that Belphegor wanted him to come to read the souls are insideEnochian. She needs Sam’s help, as he’s close Castiel recites the words -- verses singing praise to a seasoned witch[[Lucifer]] -- but nothing happens. Someone will Belphegor points out that maybe it need to throw be sung, so Castiel sings the Enochian and the “bomb” into box opens. Just as Castiel is handing over the rift while she horn, Ardat appears and Sam stay protectedattacks. Dean volunteersShe reveals that Belphegor has been playing a long game and wants to rule Hell. Belphegor offers kills her and tells Castiel that he plans to get use the crookhorn to draw all the souls into himself, giving him god-like power. He pushes Castiel away and claims he needs protection, looking sounds the horn causing the souls to start rushing back to Castiel. Dean agrees leaving Castiel feeling like he must goHell and into Lilith's Crook.

Meanwhile, Ketch wakes Dean has taken up in position near the hole, with the hospital[[hex bag]] that will help close it. They have removed Rowena has prepared the bullets Dean shot him with when Ketch was ghost possessed. He is about to leave when he is attacked by ingredients, and together she and Sam perform the demon Ardatspell. She wants Belphegor, who Ketch was meant The hex bag Dean holds starts to kill for her. When Ketch won’t give him up at any priceglow, Ardat kills giving him by ripping out his heart. As the spell supplies Rowena needs are brought signal to throw it down into the crypt by the hunter Stevierupture, Ardat texts Dean from Ketch's phone and Dean unwittingly reveals the details of their plancausing it to start to close.

Castiel and Belphegor go to enter In Hell through the rift, with Belphegor taunting Castiel that overcomes the Winchesters don't care about him. Castiel pushes horn’s power to stop Belphegor into the hole and jumps in after. In Hell, they find Lilith’s chamber, which is being ransacked by a demon that Castiel quickly dispatches. Belphegor explains that also stops the horn is safe inside a box with Enochian wardingsouls returning. Castiel realizes that Belphegor wanted him pretends to come be Jack for a moment to read the Enochian. stop Castiel recites the words, but nothing happens. Castiel calls him a liar and [[Smiting|smites]] Belphegor points out that maybe it need to be sunga cinder, so Castiel sings destroying the Enochian and horn in the box opensprocess.

Just as Castiel Topside, Rowena notices something is handing over wrong and that the horn, Ardat appears and attacksspell has not worked. She reveals states that Belphegor she has been playing one last spell she can use, as she pulls out her last [[resurrection charm]] from her shoulder. Rowena tells Sam there is a long game spell that will work, and wants to rule Hellwill contain all the souls. Belphegor kills ''Death Is an Infinite Vessel'': a spell which requires only two ingredients -- the blood coursing through her veins and herlast breath. He reveals to Castiel that he plans to use the horn to This will draw all the souls into himselfher body where they will be trapped until, over time they will slowly be released. However, Rowena says she cannot kill herself -- she still values her own life too much. She explains that Sam, as was written in [[Death]]'s notebooks, giving him godlike powerhe must be the one to kill her. He pushes Castiel away Sam protests and sounds refuses, but when Rowena asks if he’ll let the horn world, and Dean, die instead, he knows the souls start rushing back through answer. Sam draws Rowena to him, stabbing her in the rift and getting sucked inprocess.

Meanwhile Castiel emerges from the hole. When Dean has taken up position near asks what went wrong, Castiel tells him that he killed Belphegor and the rifthorn is destroyed. Dean is incredulous when, suddenly, with they notice the hex bag that will help close it. ghosts being drawn into Rowena has prepared as she walks to the ingredientsrift with a somber Sam behind her. With a last farewell, and together she and Sam say jumps into the spell. The hex bag Dean holds starts to glow rift and Dean throws it into the rift. It starts to closecloses behind her.

In Hell, Castiel overcomes At [[the horn’s power to stop BelphegorBunker]], which also stops the souls returning. Belphegor pretends to be Jack for Dean checks in on a moment to stop Castiel, but Castiel calls him a liar and smites grief-stricken Sam. He tells him destroying the horn in the processtownsfolk of Harlan are okay, and that Ketch was found killed, probably by a demon. He reassures Sam that he had no choice about Rowena.

Topside, Rowena notices something is wrong and that the spell has not worked. She states that she has one last spell she can use, as she pulls out her last resurrection charm from her shoulder. Rowena tells Sam there is a spell that will work, and contain all the souls. ''Death is an Infinite Vessel'': a spell which requires only two ingredients - the blood coursing through her veins and her last breath. This will draw all the souls into her body where they will be trapped until, over time they will slowly be released. However Rowena says she cannot kill herself - she still values her own life too much. She explains that Sam, as was written in Death's notebooks, must be the one to kill her. Sam protests and refuses, but when Rowena asks if he’ll let the world, and Dean, die instead, he knows the answer. Sam draws Rowena to him, stabbing her in the process.  Castiel emerges from the rift. When Dean asks what went wrong, Castiel tells him that he killed Belphegor and the horn is destroyed. Dean is incredulous when, suddenly, they notice the ghosts being drawn into Rowena as she walks to the rift with a somber Sam behind her. With a last farewell, she jumps into the rift and it closes behind her.  Later in the Bunker, Dean checks in on a a grief-stricken Sam. He tells him the townsfolk of Harlan are okay, and that Ketch was found killed, probably by a demon. He reassures Sam that he had no choice about Rowena. In the library, Dean is getting a drink when Castiel comes to ask about Sam. When he says he is sorry about Rowena, they fight over what happened. Castiel realizes that Dean still blames him for [[Mary]]'s death. He confronts Dean about his anger, and says Dean doesn't care about him anymore. With Jack dead, and [[Chuck ]] gone, and the brothers having each other for support, Castiel says he feels it is time for him to move on and he leaves.