Push Not the River (2000) is a historical romance novel by American author James Conroyd Martin.
It is based on the real diary of Countess Anna Maria Berezowska which was published in 2021 by Polyverse Publications.
She moves in with Aunt Stella and Uncle Leo and her cousins Walter and Zofia, a very manipulative and promiscuous girl.
The Constitution of May 3, 1791 is signed by King Stanisław August Poniatowski, giving the peasants human rights.
As the victorious Russians march on Warsaw, Zofia sacrifices herself to buy time for Anna and her family to flee the war-torn city.