The National Book Award-winning author of "Homeless Bird" returns with this riveting tale of love and sacrifice, featuring a brother and sister who pursue freedom in the shadow of Argentina's military government. Set in Buenos Aires during the 1970s dictatorship, this young adult novel is a powerful tale of courage and a portrait of a dark period in Argentina's history. Told in chapters alternating between Eduardo, imprisoned for his opposition to the government, and his sister Silvia, who hatches a plan to free him.  (ARG88, $16.99)