Kit Snicket is the second Snicket child, between author Lemony Snicket and Jacques Snicket. She tells the Baudelaire children that she was only four years old when the schism occurred in V.F.D. She was a former suitor of Count Olaf.
She was first mentioned by name in The Grim Grotto; she sent a letter to Gregor Anwhistle about using the poisonous mushrooms, Medusoid Mycelium, against the enemies of V.F.D. and she is working on the way to dilute the poison at Opportune Odors Horseradish Factory on Lousy Lane. In The Carnivorous Carnival and The Slippery Slope, Lemony Snicket writes a letter to Kit Snicket.
In The Grim Grotto, Kit appears at Briny Beach to pick up the Baudelaire children in a taxi. In The Penultimate Peril, she drives them to the Hotel Denouement and shares some information with them about V.F.D. She is pregnant and and probably in a relationship with Dewey Denouement, as it was strongly indicated he was the father. Kit has a house where she resides; on the bottom of page 33, Kit says, "I've scarcely looked at these maps, poems, and blueprints that Charles sent me, or chosen wallpaper for the baby's room." Kit Snicket is part of V.F.D and on the noble side of the schism. It was mentioned that she went water-skiing to meet Captain Widdershins, and she also hinted that she would end up on the self-sustaining hot air mobile home. She also told the Baudelaires that no one could be either noble or wicked, as that everyone is a little of each.
In The End, Kit tells the Baudelaires that after she left them at the Hotel Denouement, she met with Captain Widdershins and his stepchildren, Fiona and Fernald. Together they repaired his submarine and reached the Quagmires just as the self-sustaining hot air mobile home was wrecked by eagles. Kit was injured when a telegram device fell on both of her legs. She escaped by making a raft out of her favorite books, but all of the others were either captured or rescued by the mysterious question mark-shaped "Great Unknown". Kit's raft carries her to the same island where the Baudelaires and Count Olaf had been shipwrecked, thus giving Kit the opportunity to tell the children about the events described above. As Count Olaf is dying, he kisses her gently on the mouth, saying that he told her he'd do that one last time, a possible implication that the two were romantically involved. As Olaf dies, the two recite a bit of poetry together.
Kit dies as well while giving birth because of her exposure to the Medusoid Mycelium spores; the apple-horseradish hybrid would have cured her but harmed her unborn child in the process. The Baudelaires end up being the "parents" of the baby after Kit told the Baudelaires to name the baby after one of their parents. She mentioned that it was a tradition to be named after those who had died in their family. Sunny replied with "that's ours, too."
In "13 Shocking Secrets You'll Wish You Never Knew About Lemony Snicket," secret #3 said that Lemony's niece is an orphan. Presumably this is a reference to Kit's baby; however, it is unknown if Jacques had children as he is rarely mentioned.
A 2006 spin-off book, The Beatrice Letters, describes Kit's 10-year-old daughter Beatrice Baudelaire's search for her uncle, Lemony Snicket, and for the Baudelaire orphans who adopted her after her mother's death and named her after their own mother, Beatrice Baudelaire.
In her childhood years before A Series of Unfortunate Events, she was tasked with investigating a fountain that Lemony was unable to help her with.
In the rare edition of The Bad Beginning, one of Lemony's notes says "his sister", obviously Kit, has proposed that some of the eyes of Count Olaf's house hid secret peepholes, cameras, or microscopic lenses, as in the Baudelaire home.
Lemony Snicket wrote the books at the request of his niece, Beatrice, when she was ten years of age, nine years after The End. During some of the previous novels, Lemony had encoded notes to his sister, which implied that he did not learn of her death for nine years, when he started researching the events of The End.
Read more about this topic: Snicket Family, Family Members