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 Sorted | Title | Author | Doctor | Featuring | Released |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | 6Y/AA | The Nightmare Fair | Graham Williams (adapted by John Ainsworth ) | 6th | Peri , Celestial Toymaker | November 2009 |
| 2.0 | 6Y/AB | Mission to Magnus | Philip Martin Category:Articles with hCards | 6th | Peri, s Ice Warrior , Sil | December 2009 |
| 3.0 | 6Y/AC | Leviathan | Brian Finch (adapted by Paul Finch ) | 6th | Peri | January 2010 |
| 5.0 | 6Y/AE | Paradise 5 | PJ Hammond and Andy Lane | 6th | Peri | March 2010 |
| 6.0 | 6Y/AF | Point of Entry | Barbara Clegg and Marc Platt | 6th | Peri | April 2010 |
| 7.0 | 6Y/AG | The Song of Megaptera | Pat Mills | 6th | Peri | May 2010 |
Question:
Name the author for peri and april 2010
Answer:
Barbara Clegg and Marc Platt