J Fardell · Joan Friedlander · Johanna Friedl · Johanna Friedli · John Friedel · John Friedlander · John Frodel
Faber and Faber · Penguin Books Ltd · Penguin Putnam · Ravensburger Buchverlag
| title | media type | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|---|
| Der finstere Plan des Professor Murdo | Gebundene Ausgabe | 978-3-473-34481-9 | 2006 | Gerald Jung · Katharina Orgaß | |
| Der Flug der Silbernen Schildkröte | " | 978-3-473-34492-5 | 2007 | Gerald Jung · Katharina Orgaß | |
| Flight of the Silver Turtle | Hardcover | 978-0-399-24382-0 | 2006 | ||
| The 7 Professors of the Far North | Paperback | 978-0-14-240735-6 | 2006 | ||
| The Flight of the Silver Turtle | " | 978-0-571-22691-7 | 2006 | ||
| The Secret of the Black Moon Moth | " | 978-0-571-22692-4 | 2006 | ||
| The Seven Professors of the Far North | Hardcover | 978-0-399-24381-3 | 2005 | ||
| The Seven Professors of the Far North | Paperback | 978-0-571-22155-4 | 2004 | ||