When Principal Revenant learns that Spectra has brought non-ghosts to the Ghost World, she punishes the student with detention chains that prevent her from returning to Monster High! Now the ghouls have to assume new forms and travel back to Haunted High to save their friend and uncover the true nature of Principal Revenant's punishment.

"When Bella learns of a contest to win a summer internship, she can't take her mind off the possibility of entering--and winning!--it. The only catch is that she has to submit photos of her work, and any work done by Rainbow High students is expressly forbidden to be photographed, with a penalty of ... expulsion. Jade does her best to convince Bella the contest isn't worth the risk, but Bella goes through with it anyway. The next day, Ms. Wright finds...

"Welcome to Rainbow High! After settling into their dorms and meeting each other for the first time, the students of Rainbow High head to their homeroom to meet their advisor, Ms. Morton. Surprise, Surprise, though: Ms. Morton is miles away at New York Fashion Week! But she isn't leaving her class high and dry. Ms. Morton has set up a scavenger hunt that will take the girls around campus, following clues that will help them learn more about each other....

"Central International School's annual lock-in is legendary. Bonds are made. Contests are fought. Stories are forged that will be passed down from student to student for years to come. This year's lock-in begins normally enough. Then a group of students led by Marisa Cuevas stage an ecoprotest and chain themselves to the doors, vowing to keep everyone trapped inside until their list of demands is met. Some students rally to their cause -- but others...

Sixteen-year-old Steph Landry finds an old book on how to be popular and decides to change her social status by following its advice, much to the bafflement of her two best friends.

"The three ghoulfriends, Robecca Steam, Venus McFlytrap, and Rochelle Goyle, are on the case to solve the mystery of the missing headmistress!"-- Provided by publisher.

"Nick has finally accepted his fate, now he must learn to defy his destiny, and the dark, deadly forces that will stop at nothing to destroy everyone he loves so that they can again return to the world of man and own it"-- Provided by publisher.

Every day in chemistry class, high school student and aspiring songwriter Lily Abbott is finding notes left to her by a mystery boy, love letters really, and she hopes they are from Lucas, a boy she is attracted to -- so when she finds out whom they are really from, she is shocked and unsure about how to respond.

"At a sports-crazy NJ high school where all kids must play on a team, a group of rebels start a soccer team designed to undermine the jock-culture of the school."-- Provided by publisher.

After their friend who has been missing for more than three years turns up dead, four former best friends continue to receive frightening messages from someone who knows damaging secrets about them.