can someone sum up the storyThe game gives a history of the dragon slayers, formed to kill dragons and dragon knights (humans given the ability to transform into a dragon) after a dragon knight was blamed for killing the Divine One (hero from Divine Divinity) in a war with Damian and the Black Ring.
There were no dragon knights in DD or BD, so just go through all the dialog in Farglow, etc, and read any 'history of' series of books, and you will get a summary of DD/BD as well as the pre-story to Divinity 2.