Source: Audiobook Boom
Hillary Manningham-Butler is a Mi5 agent who is sent on the Zeppelin out of Seville to capture stolen incriminating documents that could tarnish the soon to be crowned King. Hillary is in a man’s job and poses as one. She and her servant Maurice are stuck on the Zeppelin with a killer. Maurice helps her greatly as she needs her clothes laundered and her lady bits wrapped up so she can look like a man.
This book has the feel of murder on the orient express or the movie silver streak They are stuck on the airship with the killer and it takes bravery, wit, and quite a bit of luck to capture the killer before they reach new york.