Bill laughed to himself, slipping back through his portal's door with a grin. He left it there, open, without much of a thought as he cackled to himself.
Boy, humans are fun to screw with.
He didn't even notice the footsteps behind him, until the door closed with a loud thud. He looked back, in surprise, to see a human boy about his age. Well, age group.
The human was distracted by all the magical forest that surrounds them, muttering a soft "woah..."