"Because I don't like watching innocents die. You've done these people no wrong, and I can't just leave you two undefended. Aye, I know you're powerful sorcerers in your own right -- you've clearly got both the skill and the bloodline for it -- but there's potentially spiritual magic at work and that's a lot more sinister than most people expect. These people have been manipulated -- either through spiritual magic or preying on good old-fashioned greed -- into doing something's bidding. I don't know if the ultimate source is magical or just ignorant, but it's using these villagers as foot soldiers to eliminate your family. They'll use you defending yourselves as excuses to come at you harder, raising up their fallen comrades as martyrs to march against 'the evil De Spells'. And sooner or later you'll be overwhelmed.

"I want to end that cycle. Now."