OfficiallyBrown; Evelyn still has her blood stone in your save, so you will get that once you catch up to her, and the next star stone you find or blood stone you use will open the Hall of Heroes.
Drawingmelee; Please email your latest save before the fight (or a Dropbox or Google drive link, etc) to supportdos@larian.com, with a description, or link to your post here.
Each save is a folder in the '..\Documents\Larian Studios\Divinity Original Sin Enhanced Edition\PlayerProfiles\<ProfileName>\Savegames_patch' folder. In Windows Explorer you can zip a file or folder by right clicking on it/them and selecting 'Send To | Compressed (zipper) Folder'.
