<P> Vosch has discreetly given a bomb contained in a pill to Ringer that will destroy everything in a 5 - mile radius . She is given this so that she can kill herself instead of being killed by a 5th wave when the time comes . He then dispatches a silencer named Constance to help Ringer out with her mission . He then sends them off in a chopper where they will then drop towards the Ohio Caverns . </P> <P> Zombie and Dumbo take a short lunch break in the woods where Dumbo reveals that he's from Pittsburgh, used to play in Little League baseball, and that he enjoys playing Call of Duty . A shot is fired and Dumbo jumps in front of Zombie, taking the hit . Dumbo is shot in the back, and Zombie stuffs rags into the wound . He tells Dumbo he will come back for him . Later Zombie finds an old cat lady that reminds him of his grandmother . She cries and begs him not to kill her . Ben puts down the gun after some explanations from the old lady, and is offered some soup . When he asks what's in it, she replies cats (she was a cat lady and there were more than a dozen cats where she lived), threw a spoon at him, then starts to strangle Zombie . He shoots her several times and finally kills her by shooting her in between the eyes . </P> <P> During this time Ringer and Constance (who Ringer has much disdain for and plans to kill her) land near the area where the Silencer Priest from the beginning of the book is . Constance disappears and Ringer battles the Priest . He is much faster and stronger than her and almost destroys her . Zombie begins heading towards the Ohio caves to find Ringer . As he approaches the caves he spots the priest and suspects trouble . He falls into a large pit full of dead bodies due to the dark conditions and starts to sink . Fearing he is going to suffocate as he sinks, a woman also hiding in the pit grabs his neck . She is Constance and tells Ben (by calling him by his name) to stay put . The Priest jumps into the pit and calls for them, causing Constance to jump from behind and shoot him in the head . </P> <P> Zombie (Ben), Ringer and Constance then head towards Urbana to reunite with Dumbo . Zombie is suspicious of Constance but Ringer vouches for her, knowing that if she doesn't Constance will kill her friends . They return to the coffee shop only to find Dumbo missing . As they search for him, they find that he crawled several blocks in search of Zombie due to his unwavering loyalty . When Zombie finds him, Ringer tells him that he has lost too much blood and will die . Dumbo then passes away . Zombie buries his body and marks his grave with colored flags . </P>

Who does cassie choose in the 5th wave