The discovery of a Death Note-inspired notebook at a New Hampshire high school has left parents rattled.

According to NH1, administrators at Nashua High School North met Tuesday with the parents of 17 students who were listed in the book, along with a description of how and when they would die.

“This book was found by a student with the ways, times and dates 17 students were going to die," one unnamed parent said. "My daughter in particular was pretty horrific, disturbing and explicit." School officials maintain that no one was ever in any danger.

In Death Note, Tsugumi Ohba and Takeshi Obata’s hit manga turned anime and live-action movie franchise, a high school student sets out to rid the world of evil using a supernatural notebook that kills anyone whose name is written in it.

The school notified families by email Friday about the "death note," but some parents are upset they weren't told earlier. Students apparently knew about the list before then, but some say they wouldn't say anything for fear their names could be added to its pages.

The name of the student who owned the notebook isn't being released, but Superintendent Mark Conrad said the school has taken appropriate action. "We did not find any evidence that the student had intended to harm students or that there were any plans beyond simply placing the students' names on the list," he told WMUR.

One parent said she felt bad for the student, telling NH1, "“My words to that girl would be that I’m sorry. I’m sorry that you feel so sad. I’m sorry you felt so alone and alienated and wronged. No one should have to feel that alone and honestly as a mom my heart breaks for her."

“Death note” scares occurred with some frequency in the United States between 2008 and 2010 — an attempt to ban the manga in Albuquerque Public Schools failed in 2010 — but have died down more recently. Still, this is at least the fourth incident to occur this year; the most recent was in June in Connecticut.