Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Series # | Episode # | Title | Written by | Directed by | Viewers | Original airdate |
| --- | --- | --- | --- | --- | --- | --- |
| 7.0 | 1.0 | The Lost Boy | Kristen Dunphy | Peter Andrikidis | 193000.0 | 13 October 2009 |
| 8.0 | 2.0 | A Prodigal Fear | Kristen Dunphy and David Ogilvy | Peter Andrikidis | 154000.0 | 20 October 2009 |
| 9.0 | 3.0 | Just Cargo | Michelle Offen | Peter Andrikidis | 141000.0 | 27 October 2009 |
| 10.0 | 4.0 | Ice in the Veins | Michael Miller | Peter Andrikidis | 171000.0 | 3 November 2009 |
| 11.0 | 5.0 | Men of Conscience | Vanessa Bates | Peter Andrikidis | 146000.0 | 10 November 2009 |
| 12.0 | 6.0 | Another Life | Katherine Thomson | Peter Andrikidis | 138000.0 | 17 November 2009 |
Question:
What is the series number for the episode written by Kristen Dunphy and David Ogilvy?
Answer:
8.0