fire and ice wards

I belted on the gun, shook out my shield bracelet, and took up my staff and blasting rod. Anything that came through my door would have to contend with my threshold, the aura of protective energy around any home. Most supernatural things didn't do so well with thresholds. After that, they'd have to force their way past my wards-barriers of geometrically aligned energy that would block out physical or magical intrusion, turning that energy back upon its source. A small, gentle push at my wards would result in a similar push against whatever was trying to get in. A swift or heavy push would result in more energy feeding back onto the attacker. Within the wards were sigils of fire and ice, which were designed to deliver bursts of destructive energy about as powerful as your average land mine.


Death Masks Chapter 10, Page 97