A new mummy arrives at the Museum of Natural History, an Egyptian princess. How is it that she knows everyone's favorite young pharaoh? The nightly adventures of the museum's inhabitants continue with a new addition!

This is part of the Night at the Apartment series, but could probably work as a stand alone. After a night out ends poorly, Napoleon steals Al Capone's car in a fit of anger.

Rose McPhee, the niece of Dr. McPhee, is moving in with her uncle and thankfully he has a job ready for her at the museum. She starts to question what is going on when she sees wax figures in different positions than the previous day. Rose gets more than she bargained for when she stays late one night at the museum.