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_23117208_4 ( no_in_season INTEGER, written_by VARCHAR )

### Question ###
Name the least number in season for jessica ball

### Accurate SQL ###

SELECT MIN(no_in_season) FROM table_23117208_4 WHERE written_by = "Jessica Ball"