Maggie picked up the computer and carried it down the stairs. “Now what?” she asked, looking around.

“Press shift, alt and home at the same time, then type in 6-6-3,” Carlotte said.

Maggie put the computer on top of the freezer and pressed the buttons. A small window opened on the screen and she entered the numbers. There was a loud thunk and the freezer rose a little and swiveled to the side to reveal a metal hatch in the floor. As Maggie watched, it silently opened and lights flickered on, illuminating a narrow metal staircase going down.

“And down we go,” Charlotte said cheerfully.