Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_20193855_2 (publisher VARCHAR, book_title VARCHAR)

### Question ###
Who is the publisher of the book titled daughters of an emerald dusk?

### Accurate SQL ###

SELECT publisher FROM table_20193855_2 WHERE book_title = "Daughters of an Emerald Dusk"