When an old foe abducts Sylvia, she must draw on her formidable reserves of physical and mental resilience to escape. While Riva investigates through official channels, Henry and Isabel run their own covert operation, all of them racing to save her.

When an old foe abducts Sylvia, she must draw on her formidable reserves of physical and mental resilience to escape. While Riva investigates through official channels, Henry and Isabel run their own covert operation, all of them racing to save her.