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Published:
2025-10-16
Updated:
2025-10-28
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6,786
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6/?
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Infernal Heir: a tail of fire and feather

Summary:

Harry Potter is the descendant of Lucifer and Asmodeus. He is raised in hell by Lucifer and Charlie. What changes will a demonic harry potter that believes in redemption for everyone who wants it will bring?

Notes:

So this is my second attempt at a story.

(See the end of the work for more notes.)

Chapter Text

Chapter 1 - The Night Death Knocked

Fog rolled across Privet Drive like a living thing, coiling around hedges and letterboxes until every homely edge felt uncertain. It was nearly midnight, and all the tidy houses slept—except Number Four, where an infant wrapped in a moth-eaten blanket shivered on the front step. A silver-bearded man in plum robes had left him there with a sigh, certain the Muggle family inside would open the door by morning. The man’s distant crack of Apparition faded, and the street fell silent.A second sound replaced it: the soft scrape of bone on brick. An impossibly tall figure emerged from the fog, each step bending the world toward chill. Stars swirled in the hollows of its eyes. A raven, black as wet ink, coasted along the rooftops and landed on the figure’s shoulder, croaking a greeting. 

“So we meet again, little Peverell,” murmured Death, voice like wind through catacombs. Gloved fingers lifted the blanket’s edge. Lightning-bolt scar, still raw. Green eyes bright despite tears. “Your wizard left you, but blood remembers.”The baby gurgled, tiny hand closing around the tip of Death’s finger without fear. A smile—fond, terrible—crossed the empty skull. “Lucifer will want to see you. And Asmodeus will howl that his line continues. Oh, what trouble you shall be.”Fog thickened, became river, became the Styx itself. Number Four melted from view. A spectral barge surfaced, carved of moonless wood. Death stepped aboard, rocking the vessel with no water beneath it, only miles of oblivion. Candles bloomed along the prow, flames inverted—black tongues licking upward.During the voyage the infant did not cry. He watched the darkness with curious awe, as though remembering it from before his birth. Whispers rose from below: forgotten souls calling the child by names unborn. Azazel. Heir. Potter. Peverell. The baby laughed, and the Styx recoiled.

A final lurch, and the boat kissed crimson shore. Towers of obsidian speared a roiling sky. Neon signs buzzed in languages older than sin. Pentagram City lived and breathed and screamed beyond the shore, but the Palace of the Morning Star stood higher, white-gold spires mocking the gloom. A gilded double door swung open before Death could knock. Lucifer Morningstar strode out, cape stitched from dawn itself, horns polished to mirror shine. His smile was all daggers and warmth. “Brother,” he greeted Death, voice like choir and thunder. “I’ve missed our meetings. Do come in.”Death inclined its head. “Business, not pleasure. Your grandson.” He offered the bundle. Lightning crackled across Lucifer’s eyes when he saw the scar.

“So the prophecy matures.” Lucifer cradled the child with unsettling tenderness. “And Lily’s Asmodean blood sings through him—I can smell the spice. Good.” He tapped the baby’s nose. “You shall have many names, but here, you’ll answer to Harry. Simple, bright. A candle before the storm.”Footsteps skittered along the marbled hall. A teenage demoness burst in, blonde hair bouncing, horns tipped cherry red. She halted, clasped hands over her mouth. “Dad, is that him?”

Lucifer chuckled. “Charlotte, meet your baby brother.”Charlie’s eyes glistened. She scooped the infant with practiced care, rocking him while humming a lullaby that sounded suspiciously like a lull before battle. “Hi, little guy. I’m Charlie. We’re gonna do great things together, okay? Maybe… maybe make this place better.”Harry cooed. A puff of golden embers spiraled from his mouth. Charlie squealed, delighted, while the tapestries behind them caught actual flame.

Lucifer snapped two fingers; the fire snuffed out. “Asmodeus indeed.” He turned to Death. “Thank you, old friend. Drink with me?”“Another night,” Death answered, already fading. “Keep him alive, Light-Bringer. We have wagers yet.”With a sigh like closing tombs, Death vanished, and the palace brightened again, almost welcoming. Servants—imp, hellhound, succubus—gathered at a respectful distance, gossip turning corners faster than sound.

The Boy-Who-Lived was here, and Hell itself took notice.Lucifer ushered Charlie and Harry into a nursery that could have belonged to royalty or a dragon: velvet cushions, mobile of miniature galaxies, toy blocks carved from meteorite. Charlie laid Harry in a crib shaped like a crescent moon. He grabbed her finger, and for an instant tiny crimson sparks danced where skin met skin. Charlie winced, then grinned wider.“You felt that too?” she asked. “Sigils forming,” Lucifer confirmed. “One day he’ll wield both charm and chaos. Until then, you’ll watch him.” His gaze softened. “Teach him mercy. I’ll teach him power. Perhaps he’ll decide which prevails.”Charlie squared her shoulders. 

“He deserves a choice. Everyone does.” Outside the window, Pentagram City roared with eternal midnight. Inside, a lullaby rose again—gentler, hopeful. Harry’s eyes fluttered closed, but embers still glowed between his lashes, promising dawn even here.Years later, stories would claim the Boy-Who-Lived spent his youth in a cupboard. The truth slept now under demon starlight, held by a princess who dreamed of redemption and watched over by a devil who loved fiercely, terribly. In the dark, the crescent-moon crib cracked ever so slightly, unable to contain the growing fire within the child. None noticed save a raven perched on the sill, eyes reflecting stars and graves. It tilted its head, cawed once—as if marking the first turn of a cosmic hourglass—then took flight into the red sky.