Vibe: Cosmic-dread puzzle box with a surprisingly aching human heart.

Inside a secret organization, a small team fights entities that erase themselves from memory, so knowledge of them vanishes almost as soon as it's learned, along with colleagues, loved ones, and even their own goals. Revised and expanded from its original SCP Foundation-era web serial, this edition is equal parts mind-bending sci-fi and existential horror.

Origin: United Kingdom

Content warnings: Violence and death, existential/cosmic dread, memory loss, grief, mental distress.

Vibe: Big-idea biological horror that goes from lab accident to world-changing in a hurry.

A rogue biotech researcher, fired for exceeding his authorization, injects himself with intelligent cells he engineered in the lab to save his work. The cells begin to change him, and then everything around him. Expanded from Bear's award-winning 1983 novelette, it's a landmark of body horror and sci-fi.

Origin: United States

Content warnings: Body horror, loss of bodily autonomy, infection and mass death, apocalyptic themes.

Vibe: Paranoid small-town invasion thriller, the origin of 'they're not who they seem.'

In a quiet California town, Dr. Miles Bennell's patients start insisting that their loved ones have been replaced by identical impostors. As he digs in, Miles discovers that something has arrived in town, and that it's spreading. The novel behind four film adaptations (including 1956's Invasion of the Body Snatchers).

Origin: United States

Content warnings: Violence and death, paranoia, loss of identity, period-typical sexism.

Vibe: A cold, awe-struck speculative-evolution chronicle of what humanity could become.

An illustrated, billion-year chronicle of humanity's strange and often grim descendants, shaped by both natural evolution and genetic engineering, some of it at the hands of a mysterious and far superior alien species. Originally released as a free online PDF, it became an internet cult classic before getting its first print edition.

Origin: Turkey

Content warnings: Body horror, themes of enslavement and genetic manipulation, extinction, dehumanization.

Vibe: Mean-spirited creature horror about cruelty coming back around.

Simon Kress, a wealthy collector of exotic pets, buys a terrarium of tiny insect-like creatures called sandkings that form warring colonies he feeds, torments, and watches for sport. Then the colonies start to take notice of him. Winner of the Hugo and Nebula awards.

Origin: United States

Content warnings: Animal cruelty (including a puppy), graphic violence and gore, torture, death.

Vibe: Awe and melancholy on a cosmic timescale, closer to wonder than horror.

Across the whole of human history, generation after generation asks a vast supercomputer one question: can entropy be reversed? Asimov's own favorite among his stories, and a far lighter pick for the month's theme than the others.

Origin: United States

Content warnings: Heat death of the universe, human extinction (non-graphic).