What episode in the series had 5.24 million viewers?
CREATE TABLE table_3918 (
    "Episode #" real,
    "Series #" real,
    "Title" text,
    "Director" text,
    "Writer" text,
    "Original airdate" text,
    "Viewers (millions)" text
)
SELECT "Series #" FROM table_3918 WHERE "Viewers (millions)" = '5.24'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What episode in the series had 5.24 million viewers? ### Input: CREATE TABLE table_3918 (
    "Episode #" real,
    "Series #" real,
    "Title" text,
    "Director" text,
    "Writer" text,
    "Original airdate" text,
    "Viewers (millions)" text
) ### Response: SELECT "Series #" FROM table_3918 WHERE "Viewers (millions)" = '5.24'