Khromolhkhan was a male cat of the new and old Felidae breed. He's only short mentioned in the book, he had mated with a she-cat of the Balinese breed named Solitaire. She was pregnant by him and is killed by Pascal to prevent the birth of cross-breed kits.

As the other cats of the Felidae breed, Khromolhkhan is probably not interesting of the genetic purity of his breed and it's likely that he was not aware of the death of Solitaire (another possibility it's that he was aware, but somehow kept to silence by the same Claudandus).