This is Goodbye for Now - Christopher Jim

For two years, Irene has scoured the deteriorating Texas hill country for her fugitive brother, seeking to save him before law enforcement kills him on sight.

Something is out here with her. A pervasive voice that haunts her at night, plaguing her with terrorizing sleep walks that leave her adrift in her most sordid memories.

Come to me, Irene.

To cope with the present, Irene will confront her past.

And before she can find her brother, Irene must learn that the dead don't haunt the living.
It's the other way around.