ring vs ceiling

Using the crutch as a lever, I slipped one end of it behind one of my big old bookcases and heaved. The bookcase shuddered and then fell in a great crash of paperback novels and hardwood shelves, smashing down onto my couch. I grunted in satisfaction and climbed up onto the fallen bookcase, using its back as a ramp. I crawled painfully up to the end of the ramp, lifted my right hand, and triggered one of the rings I wore there.
They were magical tools, created to retain a little bit of kinetic energy every time I moved my arm, and when they were operating at capacity they packed one hell of a lot of energy - and I had freshly charged them up on the punching bag. When I cut loose with the ring, invisible force struck my ceiling, blowing completely through it and through the floor of the room above, tearing at faded carpeting the color of dried mustard.
I adjusted my aim a little and blew the entire charge out of the ring on the next finger, and another one after that, each one blasting the opening wider, until it was big enough that I thought I ought to fit through it.
I hooked the padded end of my crutch over the broken end of a thick floor joist and used it to haul myself up to my good leg. Then I tossed the crutch up through the hole and reached up to pull myself through.


Changes Chapter 28, Page 267