While I'm waxing poetic about all my fave DQXI details (for easy perusal, my ramblings are all in my 'meta' tag), there's one in particular I've always wanted to touch upon...
The parallels between the Luminary and Hendrik, and how deep Jasper's hatred of Hendrik truly goes.
Now, Hendrik's hometown was destroyed, and almost the entire populace (including his family) wiped out, that we all know. We also know Hendrik was present when Cobblestone was burnt to the ground - because if it weren't for Hendrik being able to talk Jasper round at the last minute, the rest of the townspeople would also have succumbed to much the same end.
Now, logically, Jasper would have had to compromise - and Hendrik would have had to agree in some capacity. And so, you have this moment where Hendrik, though he believes the Luminary to be the Darkspawn, does not want even the enemy of Erdrea to experience that which he did as a child: the loss of everything.
Because if he could go back - if he could pick one thing to save, it would have been the people of Zwaardsrust.
And Jasper, fully aware of Hendrik's past, is more than happy to play tactician. To move the chess pieces around for his perverse amusement, just because it means it takes Hendrik back there - back to that moment where he wasn't this vision of strength and prowess, but a weak, scared child.
Because if Hendrik feels small, then Jasper gets to feel big.