As soon as she hears her older sister is gravely ill, Anna rushes to the Big Apple to sit at her bedside. Between hospital visits, she relaxes at the park service quarters on Liberty Island and explores the crumbling ruins of Ellis Island where thousands of immigrants once were processed. Rest escapes her, however, when a teenage girl mysteriously plunges to her death from the Statue of Liberty--and Anna herself suffers a dangerous tumble. The Park Service claims the falls could only be accidents, but Anna wonders if there is a common purpose behind them.