Don’t miss the next book
About series subscriptions
By clicking "Subscribe now with 1-Click®," you agree to the Kindle Store Terms of Use and authorize us to charge your default payment method or other method on file on the release date for the lowest price available on Amazon.com during the pre-order period (+ any taxes). Your subscription continues until cancelled; cancel any time from Your Memberships & Subscriptions.
- Subscriptions are for new books in the series
- You’ll always get the lowest price offered during preorder (including active comiXology Unlimited member discounts)
- Cancel individual pre-orders or your subscription at any time
New books delivered as they are released
Which books will I get?
Subscriptions are for new books in the series. You will not receive any previously released books or the current book as part of this subscription.
What will I be charged for each book?
Prices are set as pre-orders are made available. You will receive the lowest price available on Amazon.com during the pre-order period. If the book is eligible for a comiXology Unlimited discount and you are a member on the release date, you’ll get your discount too. You can cancel any book or your subscription at any time.
When will I be charged for each book?
Pre-orders will be placed within 24 hours, but you will not be charged until books are released and ready for download. We will automatically charge your default payment or other payment method on file.
Subscriptions are for new books in the series. You will not receive any previously released books or the current book as part of this subscription.
What will I be charged for each book?
Prices are set as pre-orders are made available. You will receive the lowest price available on Amazon.com during the pre-order period. If the book is eligible for a comiXology Unlimited discount and you are a member on the release date, you’ll get your discount too. You can cancel any book or your subscription at any time.
When will I be charged for each book?
Pre-orders will be placed within 24 hours, but you will not be charged until books are released and ready for download. We will automatically charge your default payment or other payment method on file.
You've subscribed to Gray Cells! We will preorder your items within 24 hours of when they become available. When new books are released, we'll charge your default payment method for the lowest price available during the pre-order period.
Update your device or payment method, cancel individual pre-orders or your subscription at
Your Memberships & Subscriptions
Your Memberships & Subscriptions
There was an error. We were unable to process your subscription due to an error. Please refresh and try again.
Download the free Kindle app and start reading Kindle books instantly on your smartphone, tablet, or computer - no Kindle device required.
Read instantly on your browser with Kindle for Web.
Using your mobile phone camera - scan the code below and download the Kindle app.
Loading your book clubs
There was a problem loading your book clubs. Please try again.
Not in a club? Learn more
Join or create book clubs
Choose books together
Track your books
Bring your club to Amazon Book Clubs, start a new book club and invite your friends to join, or find a club that’s right for you for free.
Hard Rock apparel
Outerwear, tees, and accessories. Discover the rock shop.
