After moving from London to an old mansion on the English coast, eleven-year-old twins Jason and Julia discover that their new home has twisting tunnels, strange artifacts from around the world, and a mysterious, locked door.
Mystery and Thriller
Mystery genre
The Star Of Kazan
After twelve-year-old Annika, a foundling living in late nineteenth-century Vienna, inherits a trunk of costume jewelry, a woman claiming to be her aristocratic mother arrives and takes her to live in a strangely decrepit mansion in Germany.