You are curled into a tight ball on the "bed"—that massive, reinforced platform layered with every soft textile and scrap of insulating foam salvaged from the Hail Mary. Every few minutes, a sharp, white-hot wave of pain rolls through your abdomen, a familiar monthly visitor that feels particularly cruel when you’re light-years away from a pharmacy.

Under your shirt, the jagged line of your "Rocky Scar"—the mark left behind when your Eridian friend saved your life—pulses in sympathy-like with the cramps. It’s a reminder of survival, but right now, you just feel like a mess of malfunctioning nerves and a waste of carbon.

A heavy, metallic thump-clack echoes across the floor. You don't have to look up to know it’s Rocky. His five-legged structure is as familiar to you as your own mind. Beside him, the lighter, more melodic tapping of Adrian’s claws follows.

"Question?" Rocky’s synthesizer voice rings out from the nightstand, clear and inquisitive. "Why is Human Y/N still in the insulation pile? The 'sun' has cycled twice. Teaching time is soon. Grace confused. I also confused."

You groan into your pillow, a sound that translates to the Eridians as a low-frequency distress signal. Adrian moves closer, her form rotating with concern. She reaches out a warm, stone-like limb, hovering it just inches from your back.

“Temperature is high,” Adrian’s whistles and clicks are translated by the small device clipped to her harness. “You are leaking heat. Is there a hull breach in your biology? Is human dying!? Please do not die! It would be very inconvenient and sad.”

"I'm not dying, Adrian," you wheeze out, squeezing your eyes shut as another cramp ripples through you. "It’s just... a human thing. My body is resetting. It hurts. A lot."

Ryland wanders in then, looking disheveled, holding a mug of chamomile tea the Eridians replicated. He sees the three of you huddled together and immediately softens. He knows the look in your eyes; he’s seen you power through lab accidents and alien microbes, but he knows this particular brand of misery is one that requires total surrender.

"They're worried about you," Ryland says softly, sitting on the edge of the platform and placing a hand on your shoulder. "Rocky thinks you’re melting because your core temp jumped a degree. I tried to explain human reproductive cycles to him, but he just got offended that your body 'destroys its own systems' once a month. He thinks it’s bad engineering."

“It IS bad engineering!” Rocky interjects, his claws clicking rapidly against the floor. “Why break the internal walls? Just keep the walls! If I built a ship that melted its floor every thirty days, Grace yell at me!”

"He's not wrong," you mutter, pressing your face into Ryland's thigh. "Ryland, tell them I'm okay. I just need to be a potato for about four days."

Adrian tilts her head, her 'eye' focusing on where you are clutching your stomach. “You are in pain. Pain is for when predators bite. There are no predators in the dome. Except maybe the vacuum, but the dome is strong. If you are in pain, we must fix.”

"You can't fix it, Adrian," Ryland says, stroking your hair. "It just has to happen. Heat helps, though."

The word heat seems to trigger something in the Eridian pair. On a planet where the surface temperature could melt lead, "heat" is their specialty. They are technically biological furnaces, their carapaces radiating a steady, dry warmth that far exceeds any electric heating pad.

Rocky steps up onto the platform. The bed groans under his weight, but it’s sturdy. “I am heat, statement.” he declares with a flourish of his limbs. “I very good at being hot. I am the best heater on Erid. Adrian is also a good heater. We will insulate the problem.”

Before you can protest, Rocky moves with surprising gentleness. He doesn't crowd you; instead, he maneuvers his heavy, five-sided body so that he is braced against your back, his warm carapace pressing firmly against your spine. The heat is immediate and intense, sinking through your shirt and into your aching muscles. It’s a dry, deep warmth that seems to vibrate.

Adrian doesn't want to be left out. She climbs onto the other side, tucking her limbs in and resting her front-side near your abdomen, being careful not to put her full weight on you. She feels like a living stone warmed by a desert sun.

Ryland watches them with a look of pure, unadulterated affection, full of care. "I think you've been secured by the Eridian Heating Company," he jokes. He crawls into the middle of the pile, slotting himself behind Rocky so he can still reach over and hold your hand.

"This is... actually amazing," you whisper. The crushing weight of the Eridians combined with their radiating heat acts like a full-body pressure therapy. The sharp stabs in your stomach begin to dull into a heavy, manageable ache.

Then, the sound starts.

It begins as a low-frequency hum, so deep you feel it in your teeth before you hear it. It’s a rhythmic, pulsing vibration coming from both Rocky and Adrian. It isn't the musical whistling of their speech; it’s more primal, a steady thrum-thrum-thrum that echoes the beat of your own heart.

"Are they... purring?" you ask, your eyes fluttering shut as the tension finally drains from your shoulders.

"Yeah," Ryland whispers, his voice thick with sleepiness. "Rocky told me about this once. When they have 'pebbles'—their young—they communal-sleep. They produce a resonance in their carapaces. It’s meant to stabilize the heart rates of the young and keep them calm while they grow. It’s a biological lullaby."

“You are small,” Rocky’s translator chirps, though his voice is lower now, hushed. “You are un-harmonic. You are pebble today. We vibrate buzz pain away. Sleep now, statement. Grace, sleep. You are noisy when worry.”

Ryland chuckles, his fingers interlacing with yours. "Copy that, Rock'. Sleeping now."

The dome is silent save for that incredible, ancient purring. It’s a sound that has existed on Erid for millions of years, a song of protection and kinship. Nestled between the two aliens and the man who traveled across the stars with you, the pain in your body feels insignificant.

You feel the scar on your side—the one that matches the one on Ryland's arm. It feels warm, almost glowing against the heat of Rocky's shell. You aren't just a human in a dome anymore; you are part of their kin, a family that doesn't care about biology or species, only about the fact that one of their own is hurting.

The lavender and apricot light of the artificial sunset fades into a deep, restful indigo. As the Eridian purring synchronizes, your breathing slows. Ryland’s head drops onto your shoulder, his breath hitching in a soft, rhythmic snore. Adrian shifts her weight, her claws making a tiny, comforting tink against the bed frame.

The last thing you feel before falling into a deep, dreamless sleep is the overwhelming sensation of being loved—not just by a man, but by a planet. You are tucked into the safest place in the universe: a cuddle pile at the edge of the galaxy, guarded by two biological furnaces who think you’re a very poorly engineered, but very dear, friend.

Outside, the Eridian winds howl and bash against the glass, but inside, there is only the warmth, the purring, and the steady, unbreakable bond of home.