USC Shoah Foundation today launches its 500th IWitness activity with release of In Lisa's Footsteps, a primary level IWalk based on Mona Golabek’s acclaimed The Children of Willesden Lane books. In Lisa's Footsteps tells the story of Golabek’s mother, Lisa Jura, a young Holocaust survivor who in 1938 escaped from Vienna to London on the Kindertransport.