"Keepers" is an exciting science fiction book written by a Ukrainian writer. This is an exciting novel about a temporary contingent of soldiers who, by sheer coincidence, find themselves on an alien planet, where they have to fight not only aggressive aliens, but also their own demons. The plot of the book revolves around huge losses, fear, friendship and hope for salvation. "Guardians" is a story about the strongest feeling of a person - the belief that he can conquer any obstacle, even if it is a space military conflict.