I have to confess, first of all, that "Walking to Babylon" is the only post-"Doctor Who" New Adventure that I've read. After Virgin's "Doctor Who" license lapsed, I chose not to follow the Benny NAs. I came to this book solely because it was written by Kate Orman, and I wanted to read her non-DW work to see what she was up to. Happily, "Walking to Babylon" is a marveolous book.As with most DW stories, it benefits from a small cast. This provides for a small-scale, charming read, strongly in Kate's tradition. Ancient Babylon is threatened by a recurring storyline from the Benny Books, and even though I entered this series with Book 10, I was able to follow along. Bernice, as always in Kate's stories a savvy, well-read archaelogist, hardly ever a hostage to campiness, is dispatched to 570 BCE to foil an alien incursion of dubious intentions. Babylon is gentle and evocative of other locales Kate's visited, and Earth's distant past is never patronized.I only had two problems with the book. First, and this is a problem also extant in SLEEPY, Return of the Living Dad, and Room With No Doors, is that the initial premise -- a rich one -- gets lost in a set of non-threatening plot twists about halfway through. The guest cast is replaced by characters not present at the outset, and the end result, playing with a different set of cards, is always less memorable.Second is John Lafayette, the Edwardian translator mistakenly transported to Babylon, where he becomes an erstwhile romantic foil for Benny. The Benny/John pairing has things to say about sex, mores, and politics -- it's just that these statements once again catapult Benny into the preachy caricature she's been in far too many prior books. Self-righteousness becomes no-one, and hardly replace the awe Benny could have felt at visiting Babylon.But in the long run, or walk, this book is still well worth reading, and I'm glad I entered the Benny series to find it.