Fantasy Black Dark Reddish-Violet Atmospheric Book Cover Ideas with Silhouette Light Glow Runes Ruins Embers Crack Rubble Fissure

A dark, atmospheric scene is constructed with a vast expanse of blackened rubble and faintly crumbling ruins occupying the lower foreground. In the center background, a colossal glowing fissure stretches upward in jagged asymmetry, glowing with a deep reddish-violet hue that casts a surreal and foreboding light onto the mysterious surroundings. Etched faintly into the foreground rubble are glowing magical runes, their light matching the hue of the crack. The lone silhouette of a humanoid figure stands near the fissure—dark, shadowed, and exuding mystery—to draw the reader's attention to an enigmatic focal point of tension. The glowing fissure appears to pulse with energy as its centerpiece. Soft, particle-like embers float toward the edges, adding depth and movement.

The title, "I Tomrummets Skugga," is displayed in an ethereal serif font with sharp, thin edges, glowing faintly violet to complement the crack's glow. The letters are spaced evenly and slightly faded as though they are emerging or dissipating. The author name, "K.O Granström," is presented in a smaller, minimalist sans-serif font in white, positioned near the bottom edge of the cover.

The glowing fissure is the centerpiece, starting at the bottom third and extending to the top. The silhouette of the figure is placed slightly left-of-center to balance the composition against the jagged split. Title typography is centered at the top, while the author name is aligned at the bottom. Ruins are subtly scattered horizontally in the bottom third for balance, with rune etchings leading the eye upward toward the fissure.