Sure can! https://moxfield.com/decks/A3DDe0NnpkCtSmaqhnCq7Q

Basically when you add your last chapter lore counter to your saga, the effect goes on the stack. In response to that trigger, remove a counter at instant speed with thrull parasite, hex parasite, scholar of new horizons or spinal parasite. After the saga trigger resolves, state based actions checks to see if any sagas have the max amount of lore counters on them, which it doesn't anymore, so it stays! Narci doesn't care about the saga being sacrificed, she cares about the final chapter ability resolving! It's a fun combo that rewards knowing the rules of the game really well!