A gripping middle-grade mystery from internationally best-selling author Astrid Lindgren. When Kalle Blomkvist witnesses a terrible kidnapping in the dead of night, he springs into action to follow the captors. Little does he know the trail of clues will lead to his most daring and dangerous adventure yet., The third book in a thrilling detective series for readers of 9+, perfect for fans of character led mystery book such as Murder Most Unladylike and Ruby Redfort.