Yes, this is another one of those that should have been posted a long while ago.
The authors, (yes not one but two) invited were:
is the author of eight books for young adults, including WINDFALL and THE STATISTICAL PROBABILITY OF LOVE AT FIRST SIGHT. She earned her master’s degree in creative writing from the University of St. Andrews in Scotland, and her writing has been translated into 33 languages. (Goodreads)