He was gonna do it.
Shadow Milk Cookie was going to scare Eternal Sugar Cookie. He had been planning for a while. And now he was going to. The other beasts said he shouldn't because she wouldn't care, but be didn't believe them. They were such divas.
So, here he was, standing behind a curtain. Waiting for Eternal Sugar to enter the castle's room. He was beginning to get impatient, and was about to give up. Until he heard the door and the familiar hum of Eternal Sugar.
This was it! He was going to scare her! He waited until her back was turned. He crept up behind her, and jumped, putting his hands on her shoulders.
"BOO! Heyo, honey! Didya miss me?" Shadow Milk. Eternal Sugar just turned and blinked. She spoke in her high and tired tone. "Cute."