Science-fiction Books Without Predatory Age-Gap Relationships

Midnight Robber

So long, and thanks for all the fish

Children of Dune

Pretties

The City of Ember (The First Book of Ember)

Ancillary Sword

Mona Lisa Overdrive

Use of Weapons

The Naked Sun

Dune Messiah

La planète des singes

Dragonflight

Ancillary Justice

The Uplift War

Endymion

Burning Chrome

The Dreaming Void

Artemis Fowl and the Arctic Incident

The Speed of Dark

The Bachman Books (Long Walk / Rage / Roadwork / Running Man)

Four

Breakfast of Champions

Spook Country

Y The Last Man - Deluxe Edition, Book 1