"Samantha and Rachel used to be friends. But then Rachel betrayed Samantha . . . and Samantha decided to make her life a living nightmare. Then one day, Sam and Rachel found themselves in a fight by a lake. Samantha pushed Rachel . . . and watched as Rachel fell back. And back. Into the water. And gone. No way to save her. No way she could be alive. The next day, Rachel shows up to school as if nothing happened. And now she's the one who wants to...

A 200-year-old ghost inhabits a living ancestor in order to take revenge on eleven-year-old Zack and his family.

Poppy swears she will seek revenge against Jack's cruel prank that humiliated her in front of all her friends, so when classmates start turning up dead, everyone believes it is Poppy's doing.

Bullied and lonely, Parker Nelson is excited to make a new friend at camp, but then bad, unexplainable things start happening to Parker's tormenters, and she soon discovers that her new friend might not be so friendly--or human--after all.

With Black Widow and and her fledgling hero-in-training Red Widow on mission in South America, the Red Room marks them for death and the two assassins are forced into a mission of vengeance.

Against the ominous backdrop of the 1918 influenza epidemic, new girl Annie is claimed as best friend by Elsie, the tattletale, liar, and thief of the class. But Annie would rather spend time with the other girls, since Elsie is so mean. When Elsie dies of influenza, Annie thinks she's free of her torment -- until the bully returns to reclaim Annie's friendship and take revenge.

Stranded in the woods after her cabin burns down and her father is killed, a disabled girl and her dog fervently prepare for the coming winter while plotting revenge on the person who murdered her father.

Klutzy Samantha Byrd, the laughingstock of the girls' basketball team, is determined to pay back mean Judith Bellwood for making fun of her on the court, but she never expects her revenge to get out of hand.

As she nears her goal of avenging the Renegades, who overthrew the villains to establish order from ruin, Nova grows close to justice-seeking Renegade Adrian, but her allegiance to the villains could destroy them both.

"Twins Myles and Beckett face off against Lord Teddy Bleedham-Drye, the Duke of Scilly, who has been plotting revenge against them since they humiliated him"--