Rick Riordan and Annabelle Oh launch Camp Half-Blood series with The Wild Zone

The new middle-grade series opener is due September 29 in hardcover, ebook and audiobook, introducing five demigods to a forbidden part of camp.

Rick Riordan and Annabelle Oh's Camp Half-Blood: The Wild Zone is scheduled to begin a new middle-grade series on September 29. Penguin Random House lists the book in hardcover, ebook and audiobook formats. The story follows five new demigods who enter a forbidden area of camp and encounter a curse and monsters,

according to the publisher's listing. The hardcover is listed at 320 pages. The audiobook edition, ISBN 9798217416370 , runs 7 hours 53 minutes and is read by Sarah Sun Park. The page identifies September 29 as the US publisher availability date; other markets may differ. Headline image: official The Wild Zone cover.

Credit: Listening Library / Penguin Random House.

Open the interactive version on https://mythscribe.cloud/blog/camp-half-blood-the-wild-zone-release-september-29-2026.