blocks Scorpion

Then I remembered the bracelet of shields around my left wrist. I tried to focus on it but couldn’t, with it twisted awkwardly beneath Murphy, supporting her. So I laid her down as gently and quickly as I could, then lifted my left hand and focused on the bracelet.
The lower third of my office door exploded outward, and the brown, gleaming form of the scorpion bounded across the hallway and into the wall. It was bigger, now. The damn thing was growing. It bounced off of the wall with a scrabbling, horrible agility, oriented on me, and hurtled down the hall toward me as fast as a man can run, its legs clicking and scuttling furiously over the floor. It leapt at me, claws extended, stinger flashing. I focused my will on the defensive shield the bracelet helped me form and maintain, struggling to get it together before the scorpion hit me.
I did it, barely. The invisible shield of air met the scorpion a handbreadth from my body and sent it rebounding back onto its back. There it struggled for a second, awkward and flailing.


Storm Front Chapter 22, Page 253-254