Carpathean books have a really loose timeline, but they're more grouped around the idea of common enemy. Each book belongs to a single pair, and they all belong to very few families. There is a family tree for them. It's just that the idea of common enemy came later in her writing, there's no such thing at the start, and the same goes for quasi explanations of their small numbers. There is also an invented Carpathean language in the books. It's overused in a number of books, and let's face it - no one cares for it. If I wanted to learn some non-existing language I'd go for Klingon or the elf language in LOTR. Reading chants in Carpathean was simply boring, as is the use of certain clumsy words for endearment. I'm also very surprised the later books don't have an 'R' rating, cause there's simply too much, too detailed, often too rough sex in them, which progresses in later books. From something really fresh, they fell into category of books that are full of fillers, i.e. too many sex scenes and prolonged repeated conversations, even whole repeated sentences. The same insecurities and weaknesses repeat in her characters, not only in these books, but in her other series too. She loves writing about couples in wilderness, while her writing is better when there are interactions with other people, and in urban environment. Still, these books are quite readable up to the moment she moved on from the Dark Troubadours. A good number of books to read joyfully for sure 