Dark haven
singledad mattheo riddle × reader
chapter thirteen
Series Masterlist
The next morning, the sunlight streaming through the tall manor windows felt almost too bright for the heaviness still lingering in the house. You found Mattheo in the breakfast nook, a cup of black coffee in his hand, staring out at the mist-covered grounds. He looked like he hadn't slept a wink, his eyes tracing the horizon as if looking for an enemy that wasn't there.
"He’s awake," you said softly, coming to stand beside him. "But he’s scared, Mattheo. He’s sitting on the edge of his bed, and he won’t come down. He think’s he’s lost you."
Mattheo’s jaw tightened, his gaze dropping to his coffee. "Maybe it's better if he stays up there for a bit. If I go in there, I might just remind him of why he was shouting in the first place."
"No," you insisted, placing a hand on his shoulder. "Go talk to him. He doesn't have the words to fix this on his own. It’s eating him alive that he made you upset. Please... go to him. I’ll be right there behind you if you need me."
Mattheo took a long, shaky breath and stood up. "I’ll handle this," he said, though his voice lacked its usual steel.
You followed him up the stairs to Kai's room. When Mattheo pushed the door open, the sight was heartbreaking. Kai was huddled at his small desk, clutching a green crayon so hard his knuckles were white, staring down at a coloring book but not actually drawing.
As Mattheo stepped inside, Kai’s head snapped up. His eyes went wide, swimming with instant tears, but he quickly looked back down at the floor, his small shoulders hunching up toward his ears.
Mattheo walked over, and sat on the edge of the small chair beside the boy. The silence was thick until Kai’s small, trembling voice broke it.
"Daddy?"
"Yes, Kai," Mattheo replied, his voice softer than you had ever heard it.
"Did you... did you read my letter?" Kai whispered, his bottom lip wobbling. "I wrote it all by myself. Every letter. And I drew the picture of us holding hands. Did Y/N give it to you?"
"She did," Mattheo said, reaching out to tilt Kai’s chin up so they were eye-to-eye. "I read every word. I have it right here in my pocket."
Kai looked at him, a tear finally spilling over and rolling down his cheek. "I’m the worst son ever. I said I didn't want your name. I said I didn't want you. I'm a monster boy."
Mattheo’s expression shattered for a second before a beautiful, sad smile touched his lips. He reached out, his large hand gently smoothing back Kai’s dark, messy curls—the same curls he had himself.
"No," Mattheo whispered, his voice thick with emotion. "You aren't a monster, Kai. And you aren't a bad son. You are the best thing that ever happened to me. You are the best son in the whole wide world."
"But I get so angry," Kai sobbed, finally dropping the crayon and throwing his arms around his father’s neck. "I get hot and I want to break things and I hurt your feelings! I'm a bad, bad boy sometimes!"
Mattheo pulled him into his lap, tucking the boy's head under his chin, holding him with a fierce, desperate protectiveness. "So am I, Kai," Mattheo murmured into his hair. "I get angry too. I say things I don't mean, and I break things I should protect. We both have a little bit of a storm inside us. But that doesn't mean we aren't good."
Kai pulled back just enough to look at Mattheo’s face. "You aren't mad? You don't want a different boy?"
"Never," Mattheo said, wiping Kai’s tears away with his thumb. "Not in a hundred lifetimes. You’re a Riddle, Kai."
Kai clung to Mattheo’s neck, his small fingers digging into the dark fabric of Mattheo’s shirt as if he were afraid his father might vanish if he let go. The room.
"I’m sorry about Mommy," Kai whispered, his voice tiny and muffled against Mattheo’s shoulder. "I won’t ask about her ever again, Daddy. I promise. I don’t need her to come back. I only want you and Y/N. You’re my family."
Mattheo’s eyes closed tightly, a flash of raw pain crossing his face at the mention of the woman.
He squeezed Kai tighter, his hand resting protectively on the back of the boy's head. "Kai, you don't have to promise that. You can always ask me things."
"But I don't want you to hurt," Kai pulled back, his eyes searching Mattheo’s. "I tell Y/N every day how great you are. I tell her you’re the strongest wizard and you can make the stars stay up and you’re the best at everything!"
"Oh, do you now? You've been my little wingman while I’m not looking?"
"Yes!" Kai nodded, his dark curls bouncing. "Because I want her to love you! I want her to love you as much as I do."
Mattheo’s jaw practically hit the floor. "Kai... that’s... you shouldn't say that."
"But she need to!" Kai insisted. "When she love you, we can be a big, big family. And we won't be lonely in this big house anymore."
Mattheo cleared his throat, trying to regain his composure, and gave Kai a small, playful squeeze. "Now, since you’ve decided to be a matchmaker, I suppose I should tell you the news. How would you feel about attend with me the big Gala?"
Kai’s eyes went wide "The castle party? With the robes and the magic music?"
"The very one," Mattheo added, "Y/N is taking you shopping today. You’re going to get a suit. And whatever else you want."
Kai let out a squeal of pure, unadulterated joy, throwing himself back into Mattheo’s arms. He buried his face in Mattheo’s neck, his small hands squeezing as tight as they could. "I promise, Daddy! I promise on my magic! I will never say the mean words again. I’ll never do anything to hurt you. You’re my bestest friend in the whole world."
Mattheo’s eyes shimmered with a rare, crystalline moisture. He didn’t just hug Kai back; he pulled him in like the boy was his only lifeline in a storm."You’re my bestest friend in the whole world."
An hour later, you were in the heart of Wizarding London, though you’d opted for the higher-end Muggle districts first to find Kai a suit that didn't look like a set of old-fashioned robes. Kai was a whirlwind of energy, skipping between the racks of velvet and silk, pointing at everything that sparked.
"Y/N! Look! A tie with little lions! Do you think Daddy likes lions? Or should I get the snake one?"
You laughed, chasing after him. "I think your dad is a snake man through and through, Kai. But maybe we go with classic Black so you look like a little gentleman."
As you were holding up a miniature charcoal blazer against Kai’s chest, your phone—began to vibrate violently in your pocket.
You sighed, a smirk playing on your lips. You answered it on the third ring. "The world hasn't ended yet, Mattheo. I checked five minutes ago."
"Are the guards in sight?" Mattheo’s voice came through, low and sounding like he was pacing his office.
"Mattheo," you said, rolling your eyes while Kai tried to put a pair of oversized sunglasses on a mannequin. "Please stop being worried. We are perfectly fine. No one has kidnapped us, no one is staring, and Kai is currently trying to start a fight with a plastic statue. We’re safe."
"I don't like the 'fine' tone," he muttered. "You’re too relaxed. It makes me nervous."
"That’s just your natural state of being," you teased, your voice softening. "He’s happy, Mattheo. He’s actually glowing. You did a good thing this morning. Try to sit down and breathe"
There was a long pause on the other end. You could almost hear him leaning his head against the wall.
"Now, hang up. I’m about to spend an ungodly amount of your gold on a tiny pair of Italian leather shoes."
"Buy the whole store for all I care," he said, and you could practically hear the small, tired smile in his voice. "Just bring him—and yourself—back to me in one piece."
"Always. Bye, Mattheo."
"Bye."
You tucked the phone away, feeling a warmth that had nothing to do with the shop's heating. Kai ran over, holding a tiny silk bowtie.
--—
Kai didn't even wait for the guards to close the heavy oak doors before he was sprinting toward the drawing room where Mattheo stood waiting, looking like he’d aged five years in the six hours you’d been gone.
"Daddy! Daddy! Look at my bags! I have a suit with a shiny button."
Kai shouted, throwing himself at Mattheo’s legs. He spent the next ten minutes in a breathless whirlwind, explaining every mannequin, every street performer, and the exact flavor of the ice cream he’d convinced you to buy him.
"Wait!" Kai suddenly gasped, his eyes going wide. "I forgot! I got the green dinosaurs with the spikes! I have to go put them on my bed so they can guard the room!"
He scrambled up, grabbing a small shopping bag and bolting toward the stairs. "I’ll be right back!"
As his footsteps faded into the upper corridor, a heavy, quiet stillness settled over the room. You turned to Mattheo, who was still standing by the fireplace, his arms crossed over his chest.
"You see?" you said, a small, triumphant smirk tugging at your lips. "The world didn't end. No Death Eaters in the department store, no international incidents."
"You’re late by ten minutes,"
"Traffic," you lied easily. "And a very stubborn five-year-old who insisted on greeting every dog we passed."
"Sit," Mattheo said, gesturing to the velvet armchair opposite him. His tone shifted. "We need to talk. About tomorrow."
You sat, sensing the shift in the air. "The Gala."
"The Gala," he repeated. "It isn't a party, Y/N. It’s a battlefield dressed in silk. The people there... they are vipers. They will smile at you while they try to figure out exactly where to twist the knife. You stay at Kai’s side. You do not leave him, not for a second."
He leaned forward, his dark eyes burning with an intense, protective fire. "You are to speak to no one unless I am standing beside you. If a Lord or a Ministry official approaches you, give them nothing but polite silence. And under no circumstances," he paused, his voice dropping to a dangerous whisper, "do you let anyone lead you into the gardens or the private wings of the estate. The shadows there aren't just shadows."
You felt a chill run down your spine. "Mattheo, you’re making it sound like we’re walking into a trap."
"For me, it always is," he admitted, his gaze drifting to the door where Kai had disappeared. "They will try to look for him in the boy’s eyes. You tell me if something feels wrong. If someone looks at you the wrong way, if a word feels like a threat—you tell me immediately. You don't trust anyone in that room. Not the hosts, not the guests. You trust no one but me and Theo. Do you understand?"
He reached out, his hand hovering near yours as if he wanted to take it but didn't quite dare. "Promise me, Y/N."
You reached out and covered his hand with yours, your fingers warm against his skin.
"I promise, Mattheo. I won't leave his side, and I won't trust anyone but you."
The night was a marathon of "what-ifs." The shadows in your room seemed to twist into the shapes of the people Mattheo described—vipers in silk, whispers in the dark.
Below, the manor had come alive with a frantic, rhythmic energy. You could hear the muffled thud of furniture being moved, the sharp crack of house-elves appearing and disappearing, and the distant, cold clinking of crystal. Every sound made your stomach do a nervous somersault. Dressing up felt like putting on armor that was far too thin for the battle ahead.
You were adjusting the strap of your dress, your hands trembling slightly, when the door burst open.
"Y/N! Look! Look at me!"
Kai skidded into the room, beaming. He looked impossibly small and incredibly grown-up in his charcoal-black suit, his tiny silk bowtie slightly crooked.
"Oh, my handsome boy," you breathed, the tension in your chest easing just a fraction. You reached out, straightening his tie.
"You look like a princess," Kai countered, his eyes wide with wonder as he took in your appearance. He stepped forward and wrapped his arms around your waist in a tight hug. "You're the prettiest girl in the whole world. Daddy said we can go downstairs as soon as you're ready. Everyone is starting to come!"
You sank to your knees, level with his face, and took his small hands in yours. "Kai, listen to me. I need you to promise me something. Do not leave my sight tonight. Not for a second. We stay together, okay, baby?"
Kai nodded, his expression mimicking your seriousness. "I promise."
A sharp, firm knock echoed through the room. The door pushed open, and Mattheo stepped in. He was already in his formal black suit.
He stopped dead for a heartbeat when his eyes landed on you, his gaze sweeping from your hair down to the hem of your dress. A flicker of something intense and unreadable crossed his face before he regained his mask.
"I was looking for Kai," he said.
"We were just chatting for a second," you said, standing up and smoothing your skirt. "We’ll be down in a moment."
Mattheo nodded, his eyes lingering on yours. "You remember what I said?"
You offered him a small, reassuring smile. "I do, Mattheo. No need to worry. I’ve got him."
"Kai," Mattheo said, ruffling the boy's hair. "Why don't you go show Uncle Theo your suit? He was looking for you."
"Okay!" Kai chirped, bolting out of the room with a final wave.
You felt exposed under Mattheo's gaze. You hugged your arms across your chest, a nervous habit. "The house sounds busy," you managed to say.
Mattheo didn't answer. He walked closer, the scent of his expensive cologne moving with him. He reached into his pocket and pulled out a small, velvet-lined box.
"What is that?" you asked, looking down at it.
"I need you to wear this today," he said. He flipped the lid open.
Inside lay a necklace of intricate, blackened silver. It was a serpent, its body coiled in a delicate, lethal circle, its eyes made of two tiny, glowing emeralds that seemed to pulse with a life of their own. The craftsmanship was ancient and heavy with magic.
"It’s beautiful," you whispered, reaching out to touch the cool metal. You looked up at him, but he wasn't looking at the necklace; he was looking at the line of your throat. "But why?"
"It’s important," he said shortly.
"Important for what? Is it a protection charm? Is it—"
"Y/N," he interrupted, his voice dropping into that dangerous, commanding register that usually silenced a room. "Stop with the questions. Just wear it."
You rolled your eyes, but the heat in your cheeks was undeniable. "Fine."
"Turn around," he commanded.
You obeyed, your heart hammering against your ribs. You felt his presence right behind you—the heat radiating from his chest against your back. He reached forward, his fingers cool as he brushed your hair to the side. His touch lingered on the sensitive skin of your neck, sending a jolt of electricity through your entire frame. You could feel his steady, warm breath against your ear.
You closed your eyes, your head tilting slightly as he worked the clasp. His fingers were surprisingly steady for a man who had been pacing all night. The weight of the silver serpent settled against your collarbone, feeling strangely like a brand.
He didn't move away. He stayed right there, his hands still resting lightly on your shoulders.
"Did you change your perfume?" he murmured, his voice sounding closer than before.
You opened your eyes, your breath hitching. "Uhh... yes. Is it bad?"
"No," he rasped. "It isn't bad."
The tension in the room was a living thing—thick, suffocating, and terrifyingly sweet. For a second, you thought he might turn you around and bridge the final inch between you. You could feel the pull of him, the gravity of a man who usually pushed the world away.
Then, he abruptly stepped back, the spell breaking with the cold air that rushed between you.
"Don't keep Kai waiting," he said, his voice regaining its sharp. "Theo is probably teaching him how to pickpocket the Ministry officials by now."
You nodded, unable to find your voice, and hurried toward the door. As you walked out, the emerald eyes of the snake at your throat felt like they were watching.
Tag list:
@esmerai-artemis
@pluto-9456
@dracoslovergirl
@hereticdance
@weirdowithnobeardo
@ribyourtoplip
@dorkyfangir124
@eneywey
@chimchoom
@moonlightreader649
@wickedfury
@roryology
@aureliaviolet3
@corrodedcass
@samdime
@mattheoriddlewifesblog
@moonlight-girls-posts
@tahliama
@bekahchalamet
@sbrn0905
@waywardnightblizzard
@i-t--g-i-r-I
@redbag55
@ribyourtoplip
@crystalparkwgfvh
@nobodylikeslia
@waywardnightblizzard
@talitareads
@melzz2crazy
@aanoia
@loving-and-dreaming
@gabbystardust
@ribyourtoplip
@itsravenclaw379
@redbag55
@rafessidemeal
@hidden-love-letters















