The Darkspawn Chronicles are what happens if Duncan chose to recruit the undeveloped Human Commoner Origin
The Origin was left out because there was not enough room in development, but it was planned and it is stated that the Darkspawn Chronicles happen if the Warden didn't survive. The Darkspawn Chronicles are therefore what happens if Duncan recruits a human peasant from Redcliffe, who does not survive his/her subsequent Joining.
