Act 1: The Soundless Song
Sometimes the stars almost hum in Mae’s mind when she can’t sleep, but what if space was hiding a tune—one too strange for any ear? The arc opens with the Kanarii drifting soundless above the glowing teal nebula passing under their hull. Captain Mae Takamoto stands at the ship’s bridge, watching beams flicker out behind the glass. Her dream is to discover a sign that humanity isn’t alone out there, to find music in the sky and show it to her sister, Yue.
“Sir, the scanners keep picking up sharp frequency jumps,” says Oskar. His fingers hop over controls by her side.
“You keep saying signal. I don’t hear a song. Are you sure it’s not one of Dulley’s snacks spilled on the board again?” Yue jokes.
Oskar shakes his head, voice soft. “It’s in the nebula, clear and regular. Almost…melodic.”
Mae bites her lower lip. Troubled, or maybe restless. Isn’t curiosity dangerous where air has shape? How far would you go for proof?
Act 2: The Nebula Refrain
The crew moves into the mist, each wary or eager. Engineer Dulley is itching for a spacewalk, but it’s Oskar’s tools that filter human words from the static. On Mae’s call, he plays back the data. A metallic chime stirs the speakers, vibrating the whole bridge. Tiny drops fall on the dashboard—condensation from jumped instruments. “I’ve mapped the source. Permission to approach it, Captain?”
Mae grins. “Let’s meet our composer.”
Who do you trust more: the stars, or the voices inside a machine? There’s chatter, subtle worry.
Yue mutters to Dulley near the airlock: “If the chime ends and we’re broken down at the heart, don’t look at me.”
But the team leaves the ship comfort behind and enters the mists in their EVA suits. 
Act 3: Harmonics of the Unknown
The nebula isn’t empty. Shards of crystal hang all around, each pulsing divergent light when the star wind hits just right. Dulley tries gathering one, but as fingers near, it sends coins of sound into the chest—a vibration as if an organ inside the suit twists in time with the note.
Oskar’s readings go dense. “That’s not debris, it’s patterned. Like an instrument nobody has heard. They respond to us.”
Mae lines her suit mic with pure sound, aiming, talking, singing. Feedback echoes back—a response from further within, echoing her song. Single notes swell, harmony blooms out of the crystal fog, almost like words.
Suddenly, an echo pulses sharp. Yue writhes, pain crying out above the radio. Is it a greeting—or a trap meant for invaders? Mae’s heart flies as she loses sight of Yue and Oskar both as vision shatters in streaming color coils. Where would you search if the one you loved vanished beyond the human edge? 
Act 4: The Dissonant Divide
Onboard, navigation starts to melt on-screen as crystalloid sound burrows inside systems. You can’t fix a song that chooses to break you instead. Mae tracks the irregular wisps and the return melodies. Dulley’s untidy wires don’t beat the tune—the nebula won’t free them by force. “Maybe try giving up? Let them sing first.”
In the fracture, Yue’s voice rings back on the open band—blurred, synched with an alien motif, mixing her fears with the crystal pulse. Oskar screams: “It’s translating. She’s _inside_ the repeat pattern.”
Mae, equal parts hope and guilt, puts aside her function guides and starts singing, almost shaking, every note answering the crystal phrases from the field.
Moments later, the nebula’s stutter slows. The mist thins, an orbit path clears, but Yue’s suit is gone—her signal clear but not moving. Dread seeps in with the signal’s finish, half-yielding and half-there. What did those sounds exchange? 
Cliffhanger: Fade of the Song
The Kanarii staggers back into open space, Nebula song floating at the core of an unknown system. One last trill points to coordinates never charted by earth hands—one more message left for Mae.
The last comms data spills onto Mae’s console. There, embedded deep, a fragment of Yue’s voice and the aliens’ tones. Oskar’s hands tremble. “We…we haven’t lost her. It’s still talking to us.”
But should Mae answer the call or run for warmth and home? The arc cuts in silence staring at the unknown track on the starmap, inviting her next step—a leap for the ones we love. 
