The feeling of the light elemental was erratic. It didn't seem to have any control over itself and Walker tried his best to establish some. Normally light elemental mana was warm and calming. It would slowly illuminate an area unless forced together on to another form. Walker had seen this in blades along with Gil's arrows. Alice's healing was an example of some forms that it could take which didn't cause any damage and instead would help the injury.
When he pushed in to the room he was using intense concentration to hold off the light elemental mana which was spontaneously condensing here and there in the room. This gave him the chance to look around at the runes that were partially covered by fallen books. They were almost all dim which stopped the light elemental mana from traveling through them.
