Today is the last day of the Based Books Sale.
The Summer 2026 Based Book Sale has referred 449 Kindle Free E-books and 4014 Kindle Paid E-Books for a total of 4463 books in all… And We’re Not Done Yet! Today is your last chance to score some great Based Books all for $0.99 or free. The sale ends tonight at midnight (PDT).
Castalia House is participating in the Summer 2026 sale, so today will be your last day to buy each of these books for just 99 cents each:
- Probability Zero
- Trafalgar
- The Kamigata Scroll
- Out of the Shadows
- Hardcoded: AI and the End of the Scientific Consensus
- Space Fleet Academy: Year One (Biostellar Book 1)
- Space Fleet Academy: Year Three (Biostellar Book 3)
These are excellent books with very good reviews and very high ratings, and there are a lot of quality books from other authors and publishers worth checking out.