One of Henderson's best agents is being held captive in Frankfurt.
A set of forged record cards could be his ticket to freedom, but might just as easily become his death warrant.
A vital mission awaits him in France - if he can find a way to escape.
- Format: Paperback
- Pages: 368 pages
- Publisher: Hachette Children's Group
- Publication Date: 31/01/2012
- Category: Thrillers (Children's/YA)
- ISBN: 9780340999172