Adult 18+ sci-fi books

Circle of Heroes

House of Chains

The Blazing Star

A Forest Divided

The Shark in the Window

Invasion

August 1988

An Ordinary Man

Earthbound

Atavar, the Dream Dancer

Kill All Angels

Hollywood Hellmouth

Thomas Destiny

The River Wall

The Shades of Time and Memory

The City of Ember

Sins of the Father

Quick Action

Running Free

Steel Whispers

Cat Cross Their Graves

Ghost Song

Nyphron Rising

The Changelings of Chaan

A Sequel to the Adventures of Baron Munchausen Humbly Dedicated to Mr. Bruce the Abyssinian Traveller, as the Baron Conceives That It May Be Some Service to Him, Previous to His Making Another Journey Into Abyssinia. But If This Advice Does Not Delight Mr. Bruce, the Baron Is Willing to Fight Him on Any Terms He Pleases

The Ring Master's Secret

Attack of the Giant Sea Spiders

Flight of the Mariner

Killing Land

Wolves Among Sheep