We're...huh?? I'm locked in!

You step deeper into the entry way.

But wait! What was that?

Slam!

You spin back towards the door, and your brother is gone. He's shut you in! You can hear him laughing as he speeds back towards the street.

You desperately pull at the door and pound on the windows, but somehow you are locked in.

What a turn of events! What should you do?

Panic! "Might as well explore while I'm here..."