For all the bleak moments Hari experiences at the start of Blade of Tyshalle, every moment with his daughter Faith is a shining beacon of light and joy. Much needed, considering how bad things go afterward, especially with Faith and the blind god.
After adopting him into the Black Knives, Orbek refers to Caine as "little brother." As Caine proves in the following books, the feeling is mutual.
Caine: "That's why I need you to go. Orbek, please. Please. One person I love has to live through this."
In Caine's Law, almost every interaction between Caine and the horse-witch is either this or hilarious:
Horse-witch: A girl likes to be asked, dumbass.
The final lines of Caine's Law, while addressing the Leisure Congress and the Board of Governors: