Who is Irina Spasky?

Irina Spasky is a 39 Clues book character. She was a Russian who could not stand Egypt (read 39 Clues, #4 Beyond the grave), loved poisons and was called Spaz behind her back (thanks to her left eye brow). She was married, and did have a son, but her son died before the hunt began, and her husband was killed by the Kabra's. She dies in 39 Clues #6 while trying to save Amy, Dan and Alistair.