Cardinal Sins

Disclaimer: Ha! I wish!

Summary: "What if you had to protect everyone else? Would you tell the truth and hope for the best?" The Marauders are sinful...and they each have a secret.

A/N: For those of you who read this the first time around, I now finally know where I'm going with this! Each chapter will be devoted to a different character. They're all one-shot character studies about what would happen if you gave into your darkest desires...ooh dear, now I'm just making it sound smutty! It's not, despite the fact that Sirius Black is the character for one of the chapters!

A/N Take Two: Sorry that the prologue is so short; it was originally tagged onto the first chapter when this was just the fragments of a very tentative little infidelity one-shot. I'm looking at the bigger picture now but I liked the first section so much that I couldn't delete it and decided to turn it into a prologue.

A/N Take Three: I'll shut up after this, honest! I just wanted to remind you all that reviews equal lurve and you shall have my love in abundance if you press that pretty little button at the bottom of the page...still not tempted? Sure? There might be a packet of Bertie Bott's Every Flavour Beans in it for you...

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Prologue: A Lie of Omission

Dumbledore lied to Harry. Well, what's new, right? Lying is Dumbledore's speciality, and lying to Harry Potter is the easiest thing he's ever done. Because he cares.

He's lied about his whole life, about Harry's connection to Voldemort, about Snape's real loyalties, about how, in the end, Harry will have to die. But his worst lie wasn't really a lie at all. It wasn't about what he told Harry; it was about what he didn't tell him. A lie of omission.

Most of the time, he lied to protect Harry, but what if you had to protect everyone else? Would you tell the truth and hope for the best? Is honesty really the best policy? Or is it better to omit certain truths and leave a vulnerable teenage boy to live with his rose-tinted spectacles?