The Artist's Insomnia pt 10

Where would he go? she asked as she took one of the spears being thrown to the group.
“It has to be somewhere of significance. He wouldn’t just run off to run off” 2 explained.
“No…he’d never just run away…everything has to have a meaning to 6” 5 said as the group made their way out of the weapons area.
“But 6 has hardly ever been outside. How would anything be significant to him?” 7 asked, taking the first steps out of the protection of the cathedral and into the emptiness.
“Wait” 9 said as he turned on his light staff
“What?” 5 asked, turning around to face his friend.
“You said something about 6” 9 said, trying to remember the conversation they’d had almost a week and a half ago.
“I always talk about 6” 5 said, unsure why 9 was bringing up something that seemed irrelevant.
“Not like this….last week, when 7 brought him up to the watchtower. You told me… 6 used to run away…you said…you said he stopped running away after he got his key” 9 recalled.
That’s right! He always ran away until he got his key!
But what’s so special about that key?
“It belongs to something….it unlocks something…” 5 said.
But what does it unlock?
“I…I can’t remember” 5 sighed, hoping that by some miracle he would remember. They continued to walk for while before stopping so 2 could rest a bit. 5 decided to stray a ways from the others, pacing back and fourth, trying to keep himself focused. Focused and fearless. Then, in the distinct he heard a small humming sound.
“6?” 5 asked, a small hope coming to life inside the stitchpunk. 5 ran, following the source of the humming.
“I’m coming 6” he whispered lightly. Suddenly 9 came into his view
“Did you figure anything out?” 9 asked him. The humming had since stopped.
“Did you hear that humming?” 5 asked, still full of hope.
“Yes….that was me. I-I’m sorry. Ever since 6 got that music player I’ve had this song stuck in my head” 9 explained.  
“Song?” 5 asked quietly. The puzzle in his mind finally starting to piece itself together.
“Yeah…I don’t remember what it’s called” 9 said.
“My music! My music! It’s gone! They’ve taken it! I can’t hear it!”  6’s voice rang clearly in his head.
“That’s it!” 5 exclaimed, and began running to the others.
“What’s it?” 9 asked, starting after 5.
“His music! He’s going to find his music box!” 5 said excitedly, glad he’d finally remembered.
“What?” 9 asked confused. 5 stopped running and turned to face 9.
“His key. His key unlocks this…this music box. He found it…years  ago. We’d never brought it back because it was too big for any of us to carry” 5 explained

“Music? But I thought you already found that music player for him” 9 asked, trying to figure everything out for himself.
“I did. But I don’t know what his song is. None of us had ever heard his song…So when I found that, I only hoped that his song would be on there” 5 went on, starting to walk toward the others once more. 9 began to follow him.
“But why would he run off to find music?” 9 asked, not understanding the logic.
“Because….it’s his song. He can’t sleep without it” 5 said softly.
“But…I never hear any music” 9 said.
“Because he hears it in his head….but…he said…he said ‘they’ took it” 5 said.  
“Who’s they?” 9 asked
“The voices” 5 said.
“So then how has he been able to sleep?” 9 questioned.
“He hasn’t” 5 said, realizing that 6 had faked sleeping last night. Finally, 5 and 9 reached the others. They all looked at him with nervous optics.
“I know where we can find 6” 5 said confidently