Another one of Disney's failed attempts to join the horror market, but it's actually not bad, if a bit dated. A suitably atmospheric supernatural mystery with a likable cast and a number of effective moments. Not any kind of classic, but solid entertainment.
I see the issues, but at the same time, this movie is evoking fragmentation and displacement of identity in multiple respects: a displacement of the Sun that incites a transdimensional displacement of identity, a girl replacing her doppelganger's image in mirrors and in water, as well as an unseen observer assuming the voice of a child. That we're identified with the 'ghost' could open a discussion about projection.
I watched this at a friend’s house in a double feature with the Changeling. This is kindof fun in a so bad it’s good sort of way. The whole secret society that the children are part of never gets any explanation and neither does most of the supernatural stuff. The cinematography and cheap special effects are mildly charming. Like a lot of 80s dark Disney, it is questionable who the audience is supposed to be.