The Three Investigators

Franckh-Kosmos Verlags-GmbH & Co. KG

The Three Investigators and the Secret of Terror Castle: American English (Die drei ???) (English Edition)

Independently published

The Mystery of the Ghost Train: A Three Investigators Novel

Alfred Hitchcock and the three investigators in the secret of the haunted mirror

Pacific Rim Music

Three Investigators                              

Infrarecords

The Three Investigators                          

Random House Childrens Books

The Three Investigators in the Mystery of the Deadly Double

E1 Entertainment

Three Investigators & The Secret of Haunted      

Three Investigators..                            

Three Investigators:the Secrek                  

The Three Investigators and the Secret of Skeleton Island [Region 4]