Die drei Fragezeichen Hörbücher Series by Robert Arthur, William Arden

Three junior detectives investigate a mystery involving an Oriental chest, a sunken ship, and a baffling dual identity.

Hot on the trail of seven talking parrots that have seemingly vanished into thin air, the Three Investigators are in more trouble than ever. Danger lurks at every turn as they search for the birds, each of whom can quote part of a coded message from a mysterious dead man.

Finding a genuine haunted house for a movie set sounds like fun -- and a great way to generate publicity for the Three Investigators' new detective agency. But when the boys arrive for an overnight visit at Terror Castle -- home of a deceased horror-movie actor -- they soon find out how the place got its name!

The Three Investigators search for a stolen statue only to find that it has mysterously come to life.

The high pitched scream produced by an alarm clock sets three boys on the complicated and dangerous trail of art thieves.

It all started with a dollar. One dollar paid at auction by Jupiter Jones for a dusty old trunk that once belonged to The Great Gulliver, a magician who vanished as mysteriously as one of his tricks. The trunk attracts a host of bizarre characters, like Zelda the Gypsy, Three-Finger Munger, and Maximilian the Mystic. But what's inside the trunk is even more bizarre -- a skull that talks!