First double digit!
"Here, kitty kitty!", I yelled down the corridor. Mrs. Norris appeared at the foot of the stairs.
Skidding, I caught her easily.
I saw the nearest broom-closet, and put her in it, locking the door.
-next morning-
"Hey, Sirius!", I yelled, chucking an envelope at him.
He opened it.
Dear Siri,
Meet me in the broom closet on the fourth floor.
See you there,
Marlene
Sighing, he made his way to the fourth floor.
"PRONGS!", I flung another envelope at him.
Dear James,
I am ready to go on a date with you. Shall we discuss in the broom closet on the fourth floor?
Lily
He made his way too.
"LUPIN!"
I catapulted yet another envelope at him.
Dear Moony,
HELP for a prank! Fourth floor broom closet
Padfoot
And.
He.
Went.
I apparated and unlocked the doors.
The marauders all went in at the same time.
To Mrs. Norris.
I chucked some pumpkin in, not even enough for the cat, locked the doors, and went away.
"ALICE!"
But instead of apparating, I just walked.