Razgut can see Akiva, who's been invisible to Karou. Also, he recognizes Akiva—he even speaks his language, "the language of the seraphim" (14.4).
Izîl tells Karou that she must run to Brimstone and warn him that the seraphim are here.
Run? Karou wonders. But how can someone as gorgeous as Akiva be an enemy?
Her senses get the better of her, and she runs. But Akiva catches up with her.
They tussle, and Akiva slashes Karou with his sword. She fights back with a shard of wood and manages to plunge it into his side.
He's pretty scary-looking up close. His expression is flat, "the living face of a dead soul" (14.39). He is notsmizing, that's for sure.
A splinter in the side isn't enough to kill Akiva. He readies his sword and prepares to cleave Karou in two.
Despite this being a life-or-death situation, Karou has a lot of time to think about what's going on. She thinks she sees hesitation and confusion in his expression.
But she's also feeling a tingling. In her palms.
She has a tattoo of an eyeball on each palm, and they're burning with energy.
Soon, she raises her palms and blasts Akiva with a huge burst of invisible energy. The angel goes down, woohoo.
While he's down, Karou bangs on Brimstone's door. After way too long, Issa finally lets her in.
Akiva pursues her, but when he opens the door, he almost collides with a woman holding a broom. He can't enter Brimstone's shop that easily.
Akiva does know one thing that Karou doesn't, however: Karou "was not, in fact, human" (14.77).