When Doul orders his men to release the Brucolac, who has been tied to the top of a mast for days. Being a vampire, he's been slowly dying of exposure to sunlight, but the first thing that Doul does when his former master leaves is to free him. This has been compounded with the fact that Doul and the Brucolac have had a relationship of respect and almost friendship even while being enemies throughout most of the novel.
"Cut him down. Cut him down and take him home."
Pretty much every scene involving Shekel and Tanner.