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_26801821_1 (no_in_series VARCHAR, written_by VARCHAR)

### Question ###
What is the number  of the series written by Teresa Lin? 

### Accurate SQL ###

SELECT COUNT(no_in_series) FROM table_26801821_1 WHERE written_by = "Teresa Lin"