Exciting adventures begin when Dovid and Esty move with their parents to the land of Israel... an ancient mystery mystifies professionals around the world... can a pair of young children solve the mystery? With the help of an incredible Time Condenser they whirl back into time... to 2000 years ago... to the formidable fortress of Masada... to the desperate fight for Jewish survival against the mighty Roman Empire... Join Dovid & Esty in this first of a series of books that capture the hearts and imagination of children around the world as they explore the land that is Israel - then and now!