The Poodle Wanders Through Europe

Ariana, Vita, and Anton really wanted to help their homeroom teacher, Peter Bronislavovich, whose family happiness was literally going to the dogs: his young wife decided to get a poodle. The good children rashly promised him they would get this puppy by evening... And now they, caught and locked up, sit and wait for their fate. The game is not going by their rules. The villain who caught them will not allow his secret to be revealed, and Ariana really does not like to lose. Who will win?..