You hear Mrs. Miki approaching. At this point, it's too late to try to hide the picture. But you can't let her see it as is. Instead, you begin making adjustments to the image as quickly as you can. You feel a nervous energy fill you. Were you still a Puella Magi, you're certain your hand would be little more than a blur on the paper by now. As is, you make due with the awkward movements of a baby with a crayon.
Over the course of several seconds, the gun is transformed into a badly drawn crayon. You color over the wounds on Madoka with pink, changing her outfit to something that isn't obviously the Mitakihara middle school uniform. You-
"THERE YOU ARE!"
Drop your crayon and pee your diaper in terr- er, surprise. Yes. Surprise.
..Actually, no, you pee your diaper because you're a baby with no bladder control.
Before you can recover your dropped crayon, your mother scoops you up. You struggle futilely as she pulls you into her embrace. "You shouldn't sneak out of the room at night. You nearly scared me to death!" She snuggles you for a moment. Then she pauses. She holds you up and inspects your bottom before scrunching up her face. "Looks like somebody needs a change."
As Mrs. Miki begins carrying you back to the bedroom, you give a lamenting glance back at your ruined drawing. ...Well, maybe not ruined, per se. It's got the essence of the scene down, if not the accuracy. If you can pick it up before the Miki's get it, you should be able to edit it back into a working memory mnemonic.
"What's this? Were you drawing again?" Sayaka's mother, having apparently followed your gaze, has spotted your drawing. She makes a return trip to the living room and snatches up your drawing. "Well, you'll just have to finish this in the morning. You're supposed to be... sleeping..." Mrs. Miki trails off as she looks the picture over. "...Why is my baby daughter a better artist than I am?"
Your mother sets the picture on a table before bringing you back to the bedroom and changing your diaper. She then sets you in your crib.
You pout at her.
"Don't give me that look. It's bed time. You shouldn't be up at this hour." Mrs. Miki yawns. "And neither should I. We'll discuss this in the morning." She turns and walks back to her bed.
It looks like Mr. Miki slept through the whole thing.
[] Go to sleep. You can make a new drawing in the morning.
[] Wait until she goes to sleep, then slip back out of your crib and finish the drawing. You'll hide it somewhere.
Also...
[] Continue with Baby Shenanigans.
[] Time Skip forward at the end of the next update.