Rachel Baker is the main character of American Chillers #18: Washington Wax Museum.
Rachel's age and appearance is never mentioned, but she was a side character in American Chillers #17: South Carolina Sea Creatures.
Rachel Baker's class wins a field trip to a wax museum that is soon to be opened in Seattle, Washington...but she and her friend, David Rydell, begin to realize that all is not what appears to be. Where are the strange voices coming from? Why are the wax figures disappearing?
When the museum director tells the class that the museum might be haunted, more questions arise. Who is behind the mysterious face Rachel sees in the museum gift store window? Why are there strange wax figures in the basement? Rachel and David are about to find out...and that's when the trouble really begins!