Fast sheilds

Beyond us, Ethniu seized a boulder the size of a basketball and smashed at Marcone with it. The gangster stood there calmly while the rock shattered on a dim violet aura around him, the pieces flinging themselves violently back into Ethniu’s face.
“Oh hell no!” Bob declared.
I had to reach across to fumble in my opposite pocket with my good hand and withdraw the crystal I’d brought from Demonreach for the purpose. It flickered, deep down, with the faint green light of the crystals in the catacombs under the island.
“Bob,” I said. “We’re going to a bind a Titan.”
“Fuck that!” the skull sputtered. “I’m going to Utah! Stuff like this never happens in Utah!”
“Buddy,” I said, turning the skull to look at me. “I need you.”
Bob the Skull’s eyelights dwindled down to little points and he said, in a tiny voice, “Dammit.” He shuddered in my hand and then the lights brightened again. “Think of all the girls we’ll get when we lock her up!”
Such a long night.
“That’s the spirit,” I sighed.
“Oh! I see what you did there.”
“Dammit, Bob, focus!” I snapped grumpily. “You’re the circle. And if we survive this, you get a twenty-four-hour pass. Shore leave.”
“Whoop!” Bob whooped, and campfire sparks soared out of the skull’s eye sockets and into a swiftly moving cloud in the hellish air.
Ethniu recoiled from the rebounding stone, snarling in frustration, and started clubbing Marcone with one arm, the motion primal, brutal. His shields were comprehensive, if not really first-class in strength—but he just kept spinning new ones off his fingers, defenses akimbo. Ethniu’s furious blows would shatter the shield they struck, but by then Marcone would have spun up another one.
She switched tactics, kicking a cloud of stones at him with her broken foot—which already looked steadier than it had been. Marcone had to drop a new shield low to intercept the stones, which scattered off in random directions as the spell fractured, breaking the rhythm. He had to dive to one side before Ethniu compressed his spine into his tailbone, and she surged after him, snarling.

Battle Ground Chapter 34, Page 333-334