Although I love Warner Oland as Chan, this one is a bit of a disappointment. The idea of seances at a mysterious mansion seems like it should be one of the best films of the series. However, it comes off a bit slow moving and doesn't quite capture the mood it should have. I also missed Keye Luke as No. 1 Son. It isn't a bad film or mystery. But it doesn't compare to the many great Chans of Oland and Toler. An interesting historical note is a quick shot of the Golden Gate Bridge--still under construction--as Chan flies into San Francisco. The bridge was completed in 1937 and is seen here in 1935 when the film was made. This one is fun, but should have been better!