Ulf Blanck 
The Three ???, Magic Trick (drei Fragezeichen) [EPUB ebook] 

The great magician Zampani performs in Rocky Beach and the three ??? get to see his show. Especially his hypnosis-trick is breathtaking and even the three detectives can´t resist his magic power …
In Rocky Beach, California, live the three detectives: Justus Jonas, Peter Shaw and Bob Andrews. Together, they are The Three ??? and there is nothing they don’t take on!
The three friends witness exciting detective stories, solve puzzles no matter how tricky, and can always rely on each other.