Reticence by Gail Carriger

https://thebookvoice.com/podcasts/2/audible/188990 to listen full audiobooks. Title: Reticence Series: The Custard Protocol, Book 4 Author: Gail Carriger Narrator: Moira Quirk Format: mp3 Length: 12 hrs and 21 mins Release date: 08-06-19 Ratings: 5 out of 5 stars, 848 ratings Genres: Gaslamp Publisher's Summary: Percival Tunstell loves that his sister and her best friend are building themselves a family of misfits aboard their airship, the Spotted Custard. Of course, he'd never admit that he belongs among them. He's always been on the outside - dispassionate, aloof, and hatless. But accidental spies, a trip to Japan, and one smart and beautiful doctor may have him renegotiating his whole philosophy on life.