What novel is la creme de from?

The phrase "la crème de la crème" is a French idiom that means "the best of the best" or "the elite". It's not from a specific novel, but rather a common expression used in many contexts.

It's possible you're thinking of a novel where this phrase is used prominently, but without more information, it's difficult to determine the specific book you have in mind.

Could you please provide more context or details about the novel you're looking for?