This is one of two games entered in the Spanish Ectocomp Grand Guignol that use a ZX Spectrum emulator to make CYOA games controlled by the Q and A keys and Enter. I thought they were both by the same author, but apparently not.
This game is actually an adaptation of the Legend of the Mountain of Spirits, an older short story. However, it has been substantially expanded. In the original, a girl and her cousin get lost on a haunted mountain, with disastrous results.
In my playthrough, we left the mountain almost immediately, and had an adventure late at night in the city, although there were symbolic elements similar to the original story.
Overall, I found the writing good and the quality high. I don't really like playing ZX spectrum on an emulator (I use FUSE and it's tiny and can't be expanded), but as a game this was enjoyable.