This is the sequel to The Secret of the Brownstone House, which I haven't read. It's an enjoyable teen girls' mystery. Robin Miller, an American girl from Pennsylvania, takes a summer trip to England with her aunt, Miss Val Miller. I got to chuckle over what Robin thought an escort service was, but Miss Tilly, the escort her busy aunt hired for Robin, is fun.

Emma Tilly gladly takes Robin to see Madame Tussaud's wax museum. That sight was suggested by Mark Roper, the cute nephew of the owner-manager of the hotel where Aunt Val and Robin are staying. I'm sorry that the author didn't describe a bit more of the Chamber of Horrors. At least that's where the mystery starts -- with something one doesn't expect to have happen in a wax museum. Not unless one is stuck in a horror movie, or perhaps The Twilight Zone. Of course Emma is chatting with people she knows, so there are no witnesses and no one believes Robin. ( )