Fast underwater

She was wearing nothing more than black athletic underwear, inhumanly pale skin all but glowing in my faesight. Her silver eyes threw back the limited light like a cat’s, and she bore one of my brother’s backup kukris in her hand, doubtless taken from the arms locker belowdecks. She darted through the water, seized me by the front of my coat, and then twisted one cold hand into my freaking belt and braced a foot against my hip, to give her a point of stability as she swung the knife with inhuman strength and speed against the resistance of the water.
The blade sliced into the warty skin of the kraken, unleashing a gouting cloud of purple blood. The creature twitched and writhed, and the hull of the Water Beetle screamed in the water as she hacked down at my feet like a frenzied axe murderer while somehow never striking my flesh.
A second later, the pressure on my ankles loosened, and then the thing ripped its tentacles away from me, taking half a dozen small bites of flesh out of my ankles and calves as it went.
Lara Raith, the queen in all but name of the White Court of vampires, watched the thing retreat for a second, knife gripped in her hand. Then she shifted her grip from my belt to under one arm, kicked off the bottom, and started dragging me up to the surface.

Battle Ground Chapter 2, Page 10-11