The Boy with the Lizard

Editor's note:
Dear readers, the book titled "The Boy with the Lizard" is the third and final book in the trilogy "The Dovecote on the Yellow Meadow." The first book in the series is called "The Dovecote in Orekhov", the second book is "The Summer Carnival in Starogorsk".
The series takes place on Earth and Earth - 2, two worlds occupying the same space in two different dimensional planes of our Galaxy, and on Planet, a world beyond the Galaxy.