A/N: Working through writers block. Sigh, my worst enemy. Disclaimer: I don't own Doctor Who or Firefly. If I did, there would be a million seasons of Firefly already.
"I told you. All of space and time, everything out there! In the black, Simon!"
Simon Tam soothed his sister gently and rubbed her back as she babbled nonsense.
"They told me too! They did, I'm supposed too... I have too."
"Shh, Shh, River, you don't have to do anything. The academy isn't here."
She had been getting progressively worse in her mutterings and Simon had been overly concerned the past couple of days. River was confined to her quarters after she almost stabbed the Captain. Rivers short explanation had been,
"Thought you were him, suspenders and all."
She was back to staying far away from the crew, always rambling and they would find her in the oddest places at times and singing the strangest song. River had started singing it now.
"Tick tock goes the clock,
And all the years they fly,
Tick tock goes the clock,
You and I must die.
Tick tock goes the clock,
You cannot run forever,
Tick tock goes the clock,
Even for the Doctor."
The song sent shivers up his spine and he often wondered if she had learned it at the academy. River got up and Simon realized she had taken the meds. She drifted out of the room, her gauzy pink skirt trailing behind her.
"AH! Doc! Make your rutting sister stop singing! It's gorram creepy!"
He jumped slightly when he realized that his wraith-like sister must have found Jayne. The consequences would be terrifying if he left them at it. Of course, he wasn't afraid for his sister, he was afraid for Jayne and what Mal might do if River tried to kill somebody again.
He quickly sprinted out of the room following the sounds of her haunting soprano singing.
"Tick tock goes the clock,
She cradled and she rocked him,
Tick tock goes the clock,
Till River kills the Doctor."