Every time Bára is sent to the past, she appears dressed in the right costume. But this time she appeared in front of the Emperor Rudolf II in her own dress! Is it a mistake of the magical atlas - or is it intentional? Bára pretends that she comes from the stars and it earns her a strong interest of the Emperor. By accident she hears that somebody is planning to murder the Emperor and she decides to thwartthe plan. Sons of the famous astrologist Tycho Brahe are very helpful in carrying outthe task and thanks to them Bára meets not only Tycho Brahe himself and Johannes Kepler, but the well-known Jewish rabbi Jehuae ben Becalel too. But what about golem? Bára can´t wait to meet him!