In "Possess" by Gretchen McNeil, the story follows a teenage girl named Fiona who has just been accepted into a prestigious Catholic high school. However, her excitement turns into terror when she discovers that a malevolent spirit haunting the school has been using students as its vessels. As Fiona's friends begin to act strangely, she realizes that she must unravel the mystery to save them before it’s too late. With the help of an unexpected ally, she confronts dark forces and the chilling truth that comes with her own family's ties to the supernatural, testing her courage and resolve. [Generated by language model - please report any problems].

This book is aimed at children at US 8th grade+.

This book has been graded for interest at 14-17 years.

There are 400 pages in this book.

It is aimed at Young Adult readers. The term Young Adult (YA) is used for books which have the following characteristics: (1) aimed at ages 12-18 years, US grades 7-12, UK school years 8-15, (2) around 50-75k words long, (3) main character is aged 12-18 years, (4) topics include self-reflection, internal conflict vs external, analyzing life and its meaning, (5) point of view is often in the first person, and (6) swearing, violence, romance and sexuality are allowed.

This book was published in 2012 by HarperCollins Publishers Inc .