Sunrise on the Reaping by Suzanne Collins
This was by far the most emotionally devastating of the series. Haymitch doesn't even get legitimately reaped; the guy that got reaped ran and he was killed. Then Lenore Dove, Haymitch's girlfriend tries to intervene and he has to get involved to save her. That act gets him assigned as the replacement. He wants to work with Louella, who he has kind of been looking out for since forever; she used to follow him around call herself his sweetheart so now he calls her that. He doesn't want to work with Maysilee or Wyatt - her because she's mean and him because he comes from a family of gamblers. Then, at the parade their horses get spooked and Haymitch tries to save Louella, but she dies. But, she doesn't stay "dead" because the Capitol brings in a body double that is being controlled by (presumable) Snow. They call her Lou Lou and have to take care of her. Haymitch get approached by Ampert to join his non-careers pack. He brings the other 3 tributes from his district with him. But, Haymitch is sent to a meeting with Snow and he knows he's being targeted; he gets a 1 as his score for sponsors. Haymitch decides it's best if he goes it alone, but not completely alone because he was approached by Beetee about destroying the arena. Therefore, he has to work with Ampert because Beetee is getting in the explosives through him. Haymitch manages some sabatoge, but not enough. Ampert dies, violently. Beetee had to watch his son get mauled by mutts. Lou Lou dies. He and Maysilee team up since they are the only ones left from their district. That doesn't last long because of how few are left. Maysilee makes a stand against the game makers and she gets killed violently by mutts. Haymitch ends up winning by staying by the edge of the arena, dodging an ax, and watching it bounce back up from the force field and impaling the thrower. When he gets home, it's just in time for the funerals of the 3 fallen tributes. Then, the house he grew up in is set on fire and they can't save his mom and little brother. Then, Lenore Dove is also killed. Everyone he has ever loved is dead and he knows that he's a target so he turns to drink and distances himself from all of his friends to keep them safe. Then we find out that Katnisses dad, Burdock, was one of his best friends, and that he watched Katniss grow up. Also, there had never been any victors from District 12 so Mags and Wiress both volunteered to be their mentors. This answered to many questions about Haymitch and his past, and some that I didn't even realize I had.