A brand-new novel by one of today's most powerful storytellers, Sweep is a heart-rending adventure about the everlasting gifts of friendship and hope.For nearly a century, Victorian London relied on "climbing boys"--orphans owned by chimney sweeps--to clean flues and protect homes from fire. The work was hard, thankless and brutally dangerous. Eleven-year-old Nan Sparrow is quite possibly the best climber who ever lived--and a girl. With her wits and will, she's managed to be