Illustrate a scene of a dark and foreboding cityscape at night, with towering skyscrapers and twisted, gnarled buildings that seem to loom over the streets like sentinels, with a full moon hanging low in the sky, casting an eerie glow over the scene.

Design an icon of a dark and ancient tome bound in black leather, adorned with strange symbols and markings that seem to pulse with an otherworldly energy, with a faint glow emanating from the pages, as if the book contains secrets and knowledge that should remain hidden.

Create an illustration of a mysterious figure shrouded in shadows, with glowing red eyes and a twisted, gnarled staff, surrounded by a halo of darkness, set against a backdrop of a dark and foreboding forest, with twisted trees and overgrown underbrush, as if the very darkness itself is alive and sentient.