I do not own Doctor Who or Harry Potter

"Everyone! Show me your hands!" The Doctor yelled. Looking at his own hands which seemed to not have any marks.

Rory had 2 marks, Amy had 1 mark, River didn't have any.

"What's going on? What is wrong with a few tally marks on your hands?" Hermione asked.

"It means that we have seen The Silence."

"What are The Silence?" Ron asked.

"They are creatures that you forget as soon as you look away. You have seen one. I know because you asked about seeing something and seemed to forget what you had said. It seems that this planet has a few of them judging by the tally marks."

"What do they want?" Hermione asked.

"I don't know! The last time I thought I got rid of them by faking my own death and changing time!"

"They wanted you dead? But why?" Hermione asked.

"They wanted to stop a prophesy from happening. A prophesy still in my future!"

"What does the prophesy say?"

"That I will speak my name on the fields of Trenzalore. Which I do not intend to do right now."

"How do they plan to kill you?"

"Last time they used me." River said.

"What do you mean?"

"I was born to kill The Doctor. Before I was born they kidnapped Amy and took me away from her. They raised me to kill The Doctor. The first time I met him I almost succeed. But I saved him and I have been helping him ever since. But last time the Doctor saw me was when we defeated the Silence. They kidnapped me and made me kill him. But he tricked them and had me kill a robot version of himself instead."

"Do you think they will try and kidnap you again?"

"I don't know." River said sadly.

"If they do come they will have to go through us." Amy said holding Rory's hand.

"We will fight too." Hermione said taking out her wand, Ron copying Hermione.

"I can't wait to find out what those can do." The Doctor said excitedly but quickly becoming serious a second later.

"Before we go any further I need to give you these." The Doctor handed Hermione and Ron sharpies.

"What are these for?"

"In case you see a Silence, mark your hand with a tally mark but don't look away from it or else you will completely forget about it and whatever you were about to do. Everyone should check their hands every few minutes. Just in case someone see's another one. Now lets keep moving."

Sorry If River's story doesn't make sense or I missed something. It's hard to explain her without missing a few things and I also had to explain it in a quick way.