Leave Lindisfarne, save your game, and quit the game. Then use Windows Explorer to find the mm9 minisaves directory, and in it, delete all the minisaves starting with Linidisfarne BUT do not delete any saves starting Lindisfarnemonastery! I repeat, do not touch the Lindisfarnemonastery minisaves.Then restart the game, re-enter Lindisfarne, and see if she turns up. Basically, what you have done has forced a respawn of Lindisfarne, and if the minisaves include the location of the teachers, then they should reappear in their original locations. They will of course start wandering again as soon as you re-enter Lindisfarne.