However you rescue Phillipa, she'll give you a choice: help her with "The Spellbreaker" or do "Where is Triss Merigold?" The two quests are mutually exclusive. Helping Triss has fairly straightforward consequences. Helping Phillipa leads to lifting the spell that she has over Saskia, and you'll learn later that Letho will have rescued Triss for you.
Once done, it's time to finish all the side quests. "Bring it On: Loc Muine" is just southeast of the tower. As you approach the area south of the tower, "The Secrets of Loc Muine" will start. If you go back in the sewers (behind the tower), look for a chest. Inside are some diagrams which will trigger this Chapter's "Mystic River." The Notice Board starts "The Gargoyle Contract." Near the outer wall, along the northeast side, close to where you split up from Iorveth, you'll find the first four Dice players for "Poker Face: Loc Muinne." "A Score to Settle" is also in the same spot.
Once you've done everything and you're ready to finish the game, approach the Amphitheater and talk to either Iorveth or Triss, depending on whether you did "The Spellbreaker" or "Where is Triss Merigold?" They'll ask you to distract some guards, and then a series of cutscenes start. When you regain control of Geralt, you'll need to ascend a tower to find Sile. Your choice is whether or not to let her live. After that, fight a dragon. At the end of that fight you'll have a choice of whether or not to let her live. This leads into the Epilogue.
last modified 8 May 2020