With Leviathan and the Slaughterhouse Nine passing through the town Coil held the town through his subordinates. With this hold confirmed in driving off the Dragonflight he was on top of the world before crossing the Undersiders, who took everything he had. Now the Undersiders have claim to the city and those who come after most deal with them. Accord and his Ambassadors bowed, while both the Fallen and the Teeth stood defiant. The Fallen are dealt with and it's now time the Teeth were broken.
After having waited in the rain to coordinate with the Ambassadors and their new recruits. Skitter unleashes her insects upon the Teeth while they are camped inside a building preparing supper. This draws the group out to face the combined Undersider-Ambassador team.
Butcher takes off after Skitter and Bitch, who lure the Leader of the Teeth into the Despair Zone. Overwhelmed by the Emotional effect, possibly exacerbated by her multiple personalities, Butcher decides to take her own life. She accomplishes this using her powers.
With her death, the Undersiders and their allies win, the Teeth are routed.
↑ 1.01.1Cherish was placed in a perpetual-life sarcophagus and dropped to the bottom of the bay, in the boat graveyard. In the mayoral debates, they remark on the ambient aura of suicidal depression that was hitting anyone who ventured into that area - Cherish's power working without targets or limiters. Butcher was lured into that area. - Comment by Wildbow on reddit
↑Cherish was dragged away from the harbor and let to sink to a point that was pretty deep in, in partial hopes that she would be far enough away from any living beings that the Butcher wouldn't jump to a new host. - Comment by Wildbow on reddit
↑I had let two days pass since my conversation with Miss Militia. Dealt with the Teeth. They weren’t all gone. Hemorrhagia had slipped away, as had Reaver, and there were rank and file troops. Parian still had some cleaning up to do, at the very least, but the Teeth weren’t the presence they had been. - Excerpt from Imago 21.6