The Secret of Cassandra

Cassandra has an unusual gift – when she concentrates for a long time, she can glimpse into the future, like her famous namesake, who foresaw the fall of Troy. The girl has to hide her ability so that she doesn't... become a lab rat. After moving to another city, she enrolls in a humanities lyceum and hopes to make friends in her new class.
But in class 7 "A", the new girl is considered strange, and two Polys almost immediately declare war on her. Meanwhile, Cassandra foresees a robbery at the school. 

New friends Veronica and Petya could help prevent the crime, but how to share her suspicions with them to keep her main secret safe? 

Will the kids be able to deal with adult criminals and save the school?