Christie and Agatha's Detective Agency: A Puzzle in Plane Sight

'Miss Jacqueline Cochran is saying that she wants to back out of the record attempt. I need you to find out why.'Christie and Agatha's Detective Agency receives a call to embark on a new case! American pilot Jackie Cochran arrived in England to break a flying record. But she has pulled out under mysterious circumstances. Their first clue - a blackmail letter. Can the gang find out who the blackmailer is and ensure Miss Cochran gets her chance at making history?About the Christie and Agatha's Detective Agency series:It's not easy growing up in the 1920s. While Christie can usually be found up a tree or trying a spot of amateur engineering, her shy twin Agatha buries her nose in books and dreams of being a writer. The pair couldn't be more different. But when a scientific discovery goes missing, they find that together they make a winning combination and Christie and Agatha's Detective Agency is born. Join the twin detectives as they solve thrilling mysteries all over the world!