The Secret Under the Roof

What secrets does the old Petersburg house hold?
Vlada simply loves investigations and detective stories, her friends, and visiting Aunt Nina.
This New Year, they will celebrate together in the very center of Petersburg!
The apartment where Vlada arrived is anything but ordinary.
Right outside the window, there is a Christmas tree that can be decorated without going outside, and in one of the rooms, there is a hatch leading to the attic!
But the surprises don't end there.
Strange things are happening in the house!
An antique Christmas ornament disappears from a locked apartment, strange noises come from the attic, and the nasty neighbor is clearly up to something.
Vlada and her friends are set to uncover the secrets of the Petersburg house!