In this moving novel based on true events, a teacher and a British spy discover a group of children hiding from the Nazis in WWII Munich.

When their parents are taken to concentration camps, twenty-seven children are left alone, hungry, and scared. Claudia Kellner, a German elementary school teacher, discovers the group hiding in a deserted Munich railroad yard. Only able to hide two of them in her home, she is desperate to find shelter for the others.

Meanwhile, British spy Peter Chesham has penetrated Third Reich territory. But his critical mission is interrupted when he discovers the orphans' hiding place. Following through on his orders would have fatal consequences for them. But giving up could mean losing the war. Now Peter and Claudia must work together, attempting an impossible rescue operation with the children's lives—and the fate of the world—at stake.