Magical Mail. Book 2, Part 2. Fish Sing in Spring. Part 3. The Garden of Antique Mirrors

Do you remember from the first book that 12-year-old Nikita (Kit) works at the Magical Mail?

Almost three months have passed since he entered the dark blue carved door shortly before New Year, woke up the metal Swan-Goose, and became the most unusual courier. It was also there, not at school, that he found friends — Marat and Yanika. Now Kit is no longer surprised by the request to help gather a flock of flying fish back into the cage, nor by the garden where the mirrors reflect something completely different from what you expect to see (what a way to drape the entire garden with mirrors?), nor by the dacha that melts into the air…

But the meeting of the doctor and the archaeology professor at the full moon by the swamp — that’s not for nothing. What does it mean?.. Are they plotting something? Or is something wrong in the dacha village of Kratovo?