user: Question: Name the released for Pat Mills
Columns: ['#', 'Series Sorted', 'Title', 'Author', 'Doctor', 'Featuring', 'Released']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '6Y/AA', 'The Nightmare Fair', 'Graham Williams (adapted by John Ainsworth )', '6th', 'Peri , Celestial Toymaker', 'November 2009']
SQL:

assistant: SELECT "Released" FROM "Table" WHERE "Author" = 'Pat Mills';