In 2021, during the
COVID-19 pandemic, with her great-grandson
Dov Forman, Ebert co-authored ''Lily's Promise: How I Survived Auschwitz and Found the Strength to Live
, which includes a foreword by Prince Charles. It is a five-time Sunday Times bestseller and was Waterstones best history book of 2021. Lily's Promise'' is also a three-time
New York Times bestseller, debuting at number 2, and was chosen as the
Costco US buyers' pick for May 2022. Also in 2021, Ebert and Forman used the video platform
TikTok, gaining more than a million followers for clips in which Ebert answered people's questions about surviving the Holocaust, when she was a prisoner at Auschwitz concentration camp. Ebert and Forman's account has over 1.7 million followers; has received over 25 million 'likes' and their top 5 most popular videos have collectively been viewed by over 50 million people. Ebert and Forman collaborated with various
departments of the UK Government (including the
Department for Education, the
Foreign Office, the
Home Office and the
Department for Levelling Up, Housing and Communities), and in November 2020, they spoke at the
UK Parliament in favour of the
UK Holocaust Memorial and Learning Centre. Ebert and Forman also appeared on international radio and television, giving interviews to over 180 news outlets in more than 35 countries. Ebert's portrait was one of
Seven Portraits: Surviving the Holocaust commissioned by
former Prince Charles for the
Royal Collection to remember survivors of the Holocaust and as a tribute for the survivors who made their life in Britain. When the portraits were released in the
Queen's Gallery at
Buckingham Palace in 2022. Ebert told Charles "Meeting you, it is for everyone who lost their lives." Charles touched her shoulder and replied: "But it is a greater privilege for me." When Ebert was liberated in 1945, she met U.S. soldier Hayman Shulman. With no paper to hand, he scribbled a message of hope onto a German banknote and gave it to Lily. In 2022, after a viral social media campaign, the family of Private Shulman were located, resulting in the meeting between Lily and the children of the soldier who liberated her. In 2023, a volume of Shemot (the Hebrew name for the
Book of Exodus), signed by Ebert's younger brother Bela, who was murdered in Auschwitz, was discovered. The book had remained in Ebert's hometown of Bonyhád for decades. Recognizing the surname, a person whose father owned an antique shop purchased the book and contacted Lily's great-grandson, Dov Forman. Forman then traveled to Bonyhád to retrieve the book and brought it to London. == Centenary and death ==