Do you have the patch installed? (
DKS /
FoV)
There was a problem where certain NPCs could go missing, which the patch will prevent (though not fix if it has already occurred in your save). However, you can email your save to support@larian.com to get them to restore the character.
Maybe reload a save before the cutscene and go do other things until you are done playing for the night, and them email Larian a save in the Dark Cave.
See Lar's post
here on how to send them an Xbox save.
With the PC version, in XP the saves are in the folder
C:\Documents and Settings\ %username% \Local Settings\Application Data\Divinity 2\Savegames
or in Vista / Win 7
C:\Users\ %username% \AppData\Local\Divinity 2\Savegames
You may need to set Windows Explorer to show hidden files and folders (
XP, Vista,
Win 7).