user: Question: What was the latest episode number that Meredith Averill wrote?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [24.0, 1.0, '"Taking Control"', 'Félix Alcalá', 'Robert King & Michelle King', 'September28,2010', '12.84']
SQL:

assistant: SELECT MAX("No. in series") FROM "Table" WHERE "Written by" = 'Meredith Averill';