This question contains spoilers…
(view spoiler)[Hello! I just started Master No and I'm sorry if this has been asked and answered: Did Erin and Theo get their own story? Not sure if I missed one of the books. (hide spoiler)]
Hi, Lela. No Erin and Theo don't have a book. At the beginning of Master No they're undercover in Africa. Their relationship is supposed to be strictly cover, but you discover that after months of being together, they've taken it to another level. All of this will feed into later stories, but no you haven't missed a book.