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_19897294_8 ( no_in_series INTEGER, family_families VARCHAR )

### Question ###
Name the number in series for in the ward family and the wren family

### Accurate SQL ###

SELECT MAX(no_in_series) FROM table_19897294_8 WHERE family_families = "The Ward Family and The Wren Family"