"Hillbred" (Author Arreph El-Khoury) Is this a metaphor or personification? Kasid looked at the grim, ghastly walls and the disconsolate steps..."
This is personification (and alliteration grim, ghastly).
Grim, ghastly walls suggests the walls are fierce in disposition and horrifying. Walls do not have a disposition. They are not human. This is personification.
Disconsolate means cheerless. Again, it is suggested that if they steps are cheerless they might have once been cheerful. Human emotions + non-human object = personification.