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Book 4 in  Series

Percy is off to Japan, but will Japan survive Percy?

Bookish and proper Percival Tunstell finds himself out of his depth when floating cities, spirited plumbing, and soggy biscuits collide in this delightful conclusion to New York Times bestselling author Gail Carriger’s Custard Protocol series.

Percival Tunstell loves that his sister and friends are building themselves a family of misfits aboard their airship, the Spotted Custard. Of course, he’d never admit that he belongs among them.

Percy has 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. Except hats.

He’s done with hats. Thank you very much.

Reticence is the final book in the Custard Protocol series. It takes place after events in Competence and contemporaneous with those in How to Marry a Werewolf.

The Spotted Custard crew is back for one last rollicking adventure! Watch Miss Gail tie up all those loose threads. Look out for appearances from beloved Parasolverse characters (and some less beloved) and learn everyone’s secrets… the hard way.

Percy, of course, could care less.

Or could he?

Author Note:

This one is absolutely and utterly for YOU, Gentle Reader. Hopefully, you’ll be as caught up as possible by the time this book releases in August 2019. I’m giving you fair warning. Read like the wind!

This book will be mad cap and fun and absolutely hilarious no matter what. But you will get all the inside jokes and cookies only if you’ve read the full back catalogue of the Parasolverse.

Gear up, you’re in for a particularly puffy final float!

You have been warned.

Are you outside the USA / Canada?

This book has a different cover overseas. Here’s why.

Print edition preorder coming June 2019. Are you looking for the digital edition of Reticence? You’ll be able to buy directly from Gail.

Do you read on a Kindle or Amazon device?

You want .mobi (preorder June 2019)

Do you read on any other device?

You want .epub (preorder June 2019)

Here is how to sideload a book to your device once you have bought it.

If you’d like a signed/personalized copy or the AUDIOBOOK ON CD please email Borderlands using the SIGNED button to the left.

Concerned about anything to do with the two different editions? Gail did a video for you!


Check out the Custard Protocol Pinterest board for Gail’s visual inspiration.

Want to know more about upcoming book releases? Join the Chirrup