18, 19
The plate where Annie is standing rises into the arena, and all she sees are mountains. A rocky terrain, a few streams here and there, all exposed in the open. When the 60 seconds are up, she moves towards the cornucopia, nodding towards the people whom she has claimed as her pack. Eight people die in the initial bloodbath, but she doesn't have to kill any of them, so she's hanging on. On the fourth day, the tributes from 11 and 12 raid the cornucopia while she and the tributes from 1 and 2 and the boy from 7 are out scouting for other tributes. When they get back, the boy from 2 is so angry with Logan. He's shouting, and then he's swinging his longsword, and suddenly Logan's head is no longer attached to his body. A wave of shock and ice-cold fear washes over her. Annie is screaming, she can't stop screaming, and the other tributes are turning on her now, and even as the tribute from 2 is swinging to add her head to his tally, she's throwing the knife that hasn't left her hand in days at his heart. Her knife ends his life and she uses another knife from her belt to end the life of the tribute from 7, and she still can't stop screaming, so she turns and runs. Through the fog of hysteria, she hears the girl from 1 telling the girl from 2 "don't worry about her, she'll die soon enough on her own," but she just keeps pushing her legs as far as they can go, running blindly through the mountains.
She hides in a cave near the top of the mountain and stays there for days, shaking, listening to the sound of silence. Two silver parachutes arrive for her, each containing a gallon of water enhanced with electrolytes, and she feels cold at the thought of what Finnick must have done to secure her this, when water is already available in the arena. With each day that passes without a cannon, she knows the gamemakers will be preparing something big, so when the ground begins to shake, she runs from her cave and tries to head for higher ground. Instead, she's swept up by a mass of water dislodged by the earthquake. The cannon goes off, Boom! Boom! Boom! Boom! Boom!, and now there are eight of them left. Annie swims, and keeps swimming as the cannon goes off six more times in the next few hours, as other tributes presumably drown. She and the tribute from district 1, the one who said she was as good as dead, "fortuitously" float near each other. They know they're the last two left, and Annie knows that if she survives Emmett and Asher will die, so she lets the girl from 1 push her underwater, hold her there for close to five minutes. Then she actually starts feeling the need for air, and her instincts, her will to survive, overpowers any thought of sacrifice. She goes limp, and when the girl loosens her hold, Annie surges upwards, takes a big breath of air, and then drags the girl under with her. Their eyes are open underwater, and the girl from 1 seems to remember that Annie is from District 4, where they're taught to swim before they're taught to walk. Annie keeps her grip firm, and she watches as the girl from 1 succumbs, opens her mouth in search of oxygen, only to fill it with water, to drown in Annie's grasp. Annie emerges from the water, hears Claudius Templesmith's voice, and begins to cry.
She can't look Finnick in the eyes when he greets her, and her victor interview with Caesar Flickerman is peppered with long bouts of silence when she loses track of what is happening and flashes back to the arena. She doesn't laugh at the right time for any of his jokes, and by the time he's done with her, she knows that she's gone crazy, that everyone in Panem thinks she's absolutely nuts, including Finnick, and maybe that's okay, because she knows what is waiting for her at home.