You are Sirius Orion Black's sister, you were a Marauder too and you got a black Wolf animagus, and one day you are at the Grimmauld place with the Weasleys and Harry, Ron and Hermione, you were all eating but then your father ask you something,

"Why have you hidden a kn!fe under your pillow?"

Sirius asked you as he chew on his food and Remus looked at you.

"Huh? What?"

You asked as you look at your brother.

"There was a knife under your pillow, you know about this, what was it doing there?"

Your brother asked you as you gulp.

"Nothing.."

You mumble as he raise a brow, everyone looking.

"What do you mean, nothing?"

Sirius asked suspiciously.

"It's just there in case.."

You said in a whisper as you look down at your plate.

"In case of what? what are you talking about?"

Sirius asked you as he out his fork down, staring at you, everyone were eating and looking a you.

"I don’t know.. If there’s a break-in.. or..-"

You said but got cut off by your brother who clasped his hands together on the table.

"Show me your arms."

Sirius demanded as your eyes widen, the others look at you both, Remus, your bestfriend, was staring at you worried and concerned right now..