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.
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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) |