
At nineteen minutes past one in the morning, a star beside Saturn goes out. Maya is sure Saturn's ring is a solid hoop sliding over it, and the old observatory key can take her there to prove it. But nothing out in the ring is what it looks like from home, and the lantern only holds one night of oil.
Get this book
Links open the store's own page in a new tab.
Book details
- Published
- 22 October 2026
- Series
- Sky Keepers, Book 1
- Ages
- 10–12
- Paperback ISBN
- 9798164479923
- Hardcover ISBN
- 9798164486495
- ASIN
- B0HNXRWLCS
About the Sky Keepers series
Sky Keepers is a series of illustrated adventures for readers aged ten to twelve about space as it really is. Cousins Maya and Leo, with a clockwork owl whose star chart stopped in 1889, step through an old observatory door to real places in the solar system and beyond. Each book delivers one astronomy topic through a story with real stakes, and shows how astronomers found out what the owl never knew.
See the whole series →More for ages 10–12
- Sky KeepersIce Beside the SunCover coming soon
- Sky KeepersThe Moon Keeper's SecretCover coming soon

- Time KeysThe Pyramid CrewCover coming soon
- Time KeysOlympia RunCover coming soon
