The core story of Gaeana:

A group of investigators set out to obtain greater wisdom and understanding. Their quest is a constant struggle. Each answer merely reveals another question. Their ultimate goal is the elusive truth.

The core story presents a theme, possible motivation, opportunity for obstacles and a solid raison d’être. It is incorporated into all Gaeana stories and official publications. In games and fan fiction set in Gaeana, stories incorporating the core story will ‘ring true’.

For more information about core stories and common themes, see this post.