From the author of The Plot to Kill Hitler trilogy and Escape from Chernobyl comes another fast-paced, high-interest historical thriller, chronicling two daring attempts to cross the Berlin Wall, set decades apart.   December, 1961  Marta is a young girl who saw thirty miles of barbed wire appear across her city overnight, separating Berlin into West and East - with Marta's home on the Communist Bloc-controlled eastern side.   From Andy Marino, author of the Plot to Kill Hitler trilogy A riveting historical thriller For readers aged 8+