The Doctor, River, Amy and Rory returned to the TARDIS after visiting Greece, 1673.
Upon passing the controls, River heard a high pitch scream. She flinched and looked at the Doctor, who was strolling pass the control panel happily.
"Did you not hear that?" River asked
"Hear what?" Asked the Doctor
"Um... never mind. Goodnight, sweetie." River said. She assumed she was just tired and that she was imagining things.
She reported to her bedroom and crawled under the covers, but she couldn't sleep. The continuous screams kept her up.
She sighed, got out of bed, and slipped on a fuzzy pair of slippers before walking to the controls.
"Doctor, I'm afraid we may have a small problem." River stated
"What happened? Is little Melody Pond having nightmares?" the Doctor teased.
"No, Doctor." River Song laughed
"Then what is it?" The Doctor was grinning
River flinched as she heard another scream. The Doctor's expression switch from enjoyment to concern.
"See, there are these repetitive screams that only I can seem to hear." River explained. The Doctor's expression then flashed from concern, to worry, to forced determination.
"Well, Old Girl, looks like we're going back to Greece." He told his TARDIS. He pressed a couple of random buttons, and the TARDIS jolted forward before spinning uncontrollably in a desperate attempt to return to where they had just been.
All of this ruckus ended up waking Amelia and Rory who then stumbled into the control room rubbing their eyes.
"Doctor, what's going on here?" Amy asked groggily
"Um, well you see, it seems we might have a problem."
"Doctor, maybe instead of confusing me even more, you could tell us what's going on?" River suggested
"Right then, well, it seem as if River is experiencing a sort of telepathic alien attack. This alien is called the Scream Lord. It develops a telepathic link with the victim," He motioned towards River "and attempts to well, um... take over, but River, I'm not going to let that happen to you. You may experience some hallucinations, because the Scream Lord is telepathic." The Doctor finished explaining.
"So, why are we going back to Greece, exactly?" River questioned
"Well, I figure if it developed the link with you, it had to do it there, so I'll look for it. Do you hear that, I'll look for it. You three must stay in the TARDIS, it's too dangerous to go wandering outside, you could get infected. Promise you'll stay in the TARDIS?" the Doctor asked
"Promise." They all said sadly.
"Try to get some sleep; I'll be back in no time." The Doctor said
River wanted to believe the Doctor, she wanted to think that he'd be back telling her he'd defeated the Scream Lord in no time. She wanted to believe thins, but she couldn't stop worrying about him.