Robert Arthur - Die drei Fragezeichen und der Super-Papagei

This is one of my all-time-favourites - in the radio play version of my childhood. This is my first time reading it.
The story unfolds around a stolen parrot and quickly turns into one of the typical riddles that the ??? have to solve.
The radio play is very close to the book - I knew a lot of the scenes and sentences by heart. But some scenes were a bit more detailed and the characters of Carlos and his father were given more room which I liked.

Robert Arthur, Die drei Fragezeichen und der Super-Papagei. Kosmos, Stuttgart 2011 (Original 1964).