Carl-Johan Vallgren

Carl-Johan Emanuel Vallgren was born in Linköping, Sweden. He currently lives in Stockholm. He is an author, singer, and musician. He is the creator of 'Danny Katz', a private investigator in Stockholm, Sweden.


Titles and year of publication:  

 1) The Boy in the Shadows  2015 (Sweden 2013)
 2) The Tunnel  2016 (Sweden 2015)