Cleo de Nile/books

Cleo de Nile is a character in the Monster High novel series by Lisi Harrison, based off of the Cleo de Nile in the mainstream doll line.

Personality
Cleo is a bit spoiled, used to getting what she wants and constantly being the center of attention. She will take any position and go to great lengths to ruthlessly make sure people notice and admire her. However, she only acts this way because she thinks how she's supposed to, coming from royalty. Her father pressures her into making she always carries her royal air with her wherever she goes.

Family
Cleo has two family members mentioned in the books, her dad, whom she strives to impress, and her sister, Nefera, which it's implied the two don't get along. She also has several servants that she treats as family.

Friends
Cleo is best friends with Lala, Blue, Clawdeen, and later develops a rocky relationship with Frankie Stein, whose attention she tends to get envious of.

Romance
She is dating Deuce Gorgon, and though the two have had problems but remain steady.

Book 1 - Monster High
Cleo and Melody Carver develop a feud that starts with Melody bumping into Cleo in the cafeteria, and hits its peak when Cleo kisses Jackson to spite Melody, to which Melody responds by asking Deuce to the Monster Mash. However, Deuce explains that there was no romance involved and gives Cleo a pet snake, Hissette, which was his mom's first gray hair. He entwines the snake around her wrist and stones it, creating a bracelet.

Book 2 - The Ghoul Next Door
Cleo ends up being one of the few monsters totally against human-monster equality. She especially turns against the crusade when she's offered a photoshoot for Teen Vogue, which she gets her friends involved with as well, and it ends up on the same day as Brett's video shoot for the Ghoul Next Door, a film designed to show the RAD's true nature. She forms a shaky alliance with Bekka, and then backstabs her once she believes the video is deleted. She goes to her photoshoot, which somehow ends up with her, Melody, and Candance, and then learns that the film was sabotauged and uncensored, then aired. She ends up taking the blame by most of her friends.

Book 3 - Where There's a Wolf, There's a Way
Cleo clears her name at an R.I.P. and ends up being one of the few families to stay in town. She and Melody find a common hatred in Bekke and become friends, and together set up and plan Clawdeen's Sassy Sixteen party, which ends up a huge success when she flaunts her RAD status along with everyone else.

Book 4 - Back and Deader Thna Ever
When a competition arises for a couple to be named sponsor of a nationwide contest that will donate a million dollars to a school, her and Deuce enter and find fierce competition in Frankie and Brett. Cleo rears her ruthless once more and would have won, had not Billy Phaiden switched the ballots. In the end, her and Frankie make up and salvaged their relationship.