A/N: Hey, this is pretty much my first story, apart from two songfics which can be found on HPFF (pen name JoshBails) so all reviews are greatly appreciated.

J.K Rowling's sandbox is way to big for me, I'm just messing around in the corner

28th October 1979

A week ago, Albus Dumbledore had told Lily and James Potter about a prophecy concerning there child. For two whole days James sat in his study, thinking. He had a plan. James had only told Lily so far, the Marauders and Dumbledore didn't have to know until the time came.

Everyone would agree with the first part of his plan, it had already been suggested by the Order of the Phoenix and backed by his friends, to go into hiding using the Fidelius Charm, using Sirius as their Secret Keeper.

This was put into effect straight away but, with Sirius being the obvious choice, they switched Peter to being the Secret Keeper. This was where the second half of James' plan came into action, after the Charm had been cast James and Lily pulled Peter to the side and told him what to do.

For the last three months Peter had been infiltrating the Dark Lord's Inner Circle, the other Death Eaters, and Voldemort, trusted him as one of the Dark Lord's best servants.

"Peter, we need you to tell Voldemort where we are, tell him about the Fidelius Charm" Lily said, her words soft. Peter looked from Lily to James and back again, not believing what he was hearing. "Y-y-you can't be serious, he'll kill you" Peter said in dismay. He didn't understand this, these two people, two of his best friends had defied Voldemort three times, they had escaped him for this long, why would they give up now?

James smiled, "Of course I'm not Sirius, he's back at his apartment, but really, we have a plan, it will work and it will end Voldemort, all you need to do is tell Voldemort where we are and we'll do the rest, and don't tell anybody else, for this to work no-one else can know." Peter looked into James' eyes, then into Lily's, a single tear ran down his face and in a defeated voice he accepted. That night he told Voldemort their location and went home. An owl came for him not long after.

Peter,

We couldn't tell you everything for fear of Voldemort using legilimency and finding this out, we know he will kill us both and that's where Lily's fantastic talent comes in, surely you know about the power of Love. Both me and Lily are going to use an ancient spell when he kills us. Mine will keep you safe and hers will stop him killing Harry. Voldemort may have told you about the prophecy, but he doesn't know it all, it says that "the one with the power to vanquish the Dark Lord approaches, born to those who have thrice defied him, born as the seventh month dies, and the Dark Lord will mark him as equal, but he will have power the Dark Lord knows not, and either must die at the hand of the other for neither can live while the other survives, the one with the power to vanquish the Dark Lord will be born as the seventh month dies." This basically means that out little Harry is going to be the one to defeat Voldemort, it could happen in the next few days, when he comes for us, or it could happen twenty years from now. If the latter is correct, part of the spell I am going to cast will enable you to severly injure the Dark Lord. If it all comes to this show Harry this letter, he will be able to read the words on the other side, the writing that you can't see.

Good look my friend…and goodbye.

James Potter

Three days later, it happened, Voldemort went to Godric's Hollow and killed both Lily and James, but when he tried to kill Harry he was destroyed, he simple vanished. Some believed he was gone, others believed he was waiting. Peter knew what happened before anybody else. He suddenly felt a strong power in his core, and had knowledge of a spell he had never heard of, he knew that this must be the spell James spoke of in his letter, about being able to severely injure the Dark Lord, but surely he would never need it, the Dark Lord was dead.

The same night Sirius came to find Peter, he was the only one that knew about the switch, Peter covered for himself by blaming Sirius and running, hiding as a rat for 12 years, in case Voldemort did come back.