The concensus among the sacred survivors is that the Germans gassed all those under the age of 16 at Auschwitz. So how did Tova survive the "death camp"? A miracle of course.
Article: "Holocaust survivor recounts experience"
Bonus article: "Holocaust survivor keeps stories alive. Woman was sent to Auschwitz at 5 years old"
Just as Tova was being "taken to the crematorium to be put to death" the equipment may have malfunctioned. Were they going to be thrown into the creamtorium alive? Well whatever happened, Tova says it was a miracle.
Note: use http://www.archive.org/ to find articles if original links no longer work