At 98, Lily Ebert has more than 1.6 million followers and over 23 million likes on TikTok -- largely for posts about how she survived the Holocaust. It is part of her promise to share the story of her time in Auschwitz, where her mother, brother and a sister were killed the same afternoon they arrived. Ebert and her 18-year-old great-grandson, Dov Forman, started sharing her story on TikTok during the 2020 pandemic lockdowns, and it soon went viral. One storyline intrigued followers. After Auschwitz was liberated, Ebert met an American GI who wrote a message on a German banknote: "Good life, good luck for your future." Forman quickly found his name. Private Hyman Shulman, from Brooklyn, died in 2013, but they set up a Zoom call with his son, Jason. Ebert and Forman, who live in London, also have written a book called "Lily's Promise".