Kak tvoritʹ istorii︠u︡

A history student travels back in time to prevent Hitler's birth by dropping an infertility pill into his father's beer. The scheme backfires when a more intelligent dictator comes to power, conquering more territory and developing the atom bomb ahead of the U.S. The student, Michael Young, gets back into his time machine to allow Hitler to be born after all. By the author of The Hippopotamus.