This is a thrilling, epistolary mystery novel highligting the affection between sisters and the power of imagination.

When the teen age twin sisters, Catriona and Caroline come across a floating, screaming ghost at the window of their roof top flat, their lives seem to turn into one of the creepy, horror plays they enjoy perfoming at their Youtube channel. After all, is there space for phantasmagoric visits in a regular girl's life?
To make matters worse, this terrifying encounter messes up with Carol's mind and she not only starts keeping secrets from her sister as she now acts in a very peculiar manner: she sings ancient songs in a forgotten, foreign language, and she definitely doesn't act as her own self anymore.

After several sleepless nights, worrying about her twin and the ghost at the window, Catriona finally writes to a millenary secret society: The 1002 Ghosts.
From that moment on, ancient riddles, benign ghosts and evil humans will invade the girl's lives who will find themselves having to face the most daring and spooky situations. In order to cope with such unusual challenges they will rely upon the support of new, unexpected friends and the comfort that only true artistic crafts can really provide.

Target readers: YA (middle grade)