[quote=@Blueflame]
<Snipped quote by Memory>

Maybe someone getting angry or frustrated and just feeling defeated begins to feed and draw Umbra as the surroundings begin to darken slowly at first but noticeably more as emotions highten causing Shade to step in to difuse umbra and attempt to help 
[/quote]

Sure. And the character I'm working with has plenty of negative emotions to result in interesting interactions, too.