Instill a Sense of Fear in Your Reader. ...

Introduce an Aspect of the Unknown. ...

Use Cliffhanger Exit Hooks. ...

Add Thrilling Plot Twists. ...

Write an Ending That Contains Hope.

Fear of death. This is the ultimate fear, both existentially and psychologically. ...

The dark. ...

Creepy, crawly things. ...

Scary places. ...

Disfigurement. ...

Dismemberment. ...

Suspense (anticipation and expectations). ...

Spooky music.