Lin may be a vampire, but she has been an officer far longer. She doesn't need enhanced hearing to catch the report of the gun, and it's instinct to wheel and head for the sound, adrenalin, fury and fear flaring seconds later. Koizumi was in trouble! But that faded almost instantly, the human alarm overwhelmed by the vampire. No one fires shots at her children and gets away with it. The door has shut, and locked of course but she can exert herself if necessary. She has enough left for that.

But Koizumi isn't in pain. Or even really upset. Determined and distracted, but he hasn't been hit. She seethes, but it's still going to plan. The sooner she leaves, the sooner he can get out of there. Resisting the temptation, trusting her subordinate to take care of himself, she sets off on a winding route to distance herself and lead any followers on a difficult chase.

Koizumi will have to handle Harkness alone.