Edgar Allan Poe created a terrifying mood in “The Raven” by using haunting imagery.
For example Poe states, “And the Raven, never flitting, still is sitting, still is sitting, On the pallid bust of Pallas just above my chamber door; And his eyes have all the seeming of a demon's that is dreaming.”
This example shows how the raven sat on the bust, unmoving, and staring at the speaker.
It’s eyes shine like ones of a demon’s as it stares at the speaker.
The reader feels that afraid because the raven is scarily stiff and still as if its DEAD!
Both of those factors describing the raven make the scene very, very haunting!