The Monster's Daughter by Deborah Bryan
Approx. 54,000 words.
Published on March 22, 2011.
Seventeen-year-old Ginny Connors figures she's gotta be imagining things when her father starts showing signs of being a bloodsucking fiend. When she discovers people aren't the guests but the main course at her father's New Year party, she must face the limits of her daydreams, and attempt to stop the monster her father has become.