You can explore more extensively the area in you safely travel in Silverglen/Luculla or you can simply type in Google Search the issue.
If you go left of the first group of nectar drunk goblins you fight, the barrier breaking spell is in a heavily trapped area (Coordinates 195 125). Use that to get into the White Witch's house.
If you truly feel this game is not worth your time, though, please, do uninstall it, as you are clearly deriving no enjoyment from this game.
