Using papers that identified them as Catholic, Ruth and her daughters escaped to the so-called Aryan side, where Mark joined them shortly before the Warsaw Ghetto exploded in rebellion. Initially hidden by the Piotrowskas, a Catholic mother and her daughter, the Skoreckys changed their hiding place when an antisemitic neighbor threatened them with exposure. The rest of the war they spent sheltering in the lumber yard attached to the plant in which Mark had been working under a false identity. After liberation, the family fled Russian-occupied Poland for the American Zone of Occupation in eastern Bavaria.