Photo by Jess Mancini Hannah McDole holds her first book “The Forgotten Key,” a science fiction fantasy story. She is a senior at Warren High School.

VINCENT — A senior at Warren High School has written and published her first book.

“The Forgotten Key” is a science fiction fantasy set in London, said Hannah McDole, 18, the daughter of Lori and Timothy McDole of Vincent.

“It’s about a girl named Dove,” she said.

Dove learns she is near death, which threatens the safety of a tower that if it falls to the Darkness, then Armageddon comes, McDole said.

She and her friends, Austin, Onyx, Hera, Rose and Storm must find the missing Chakra, the seventh stone which will unify their power. No one knows where it is, McDole said.

“There’s a missing one,” she said. “That’s part of the book.”

McDole is a senior at Warren High School. She plans to go to school in the fall to learn to be a dental hygienist, but while that will be her vocation, her avocation is writing.

“I’ve always wanted to be a writer,” said McDole, who is a writer for the online “Marietta and Beyond” and Building Bridges to Careers.

This is her first published novel.

Science fiction and fantasy, such as the Harry Potter and “Hunger Games” books, are her favorite genres, she said. Her favorite writers are J.K. Rowling, who created the wizard Harry Potter, and Suzanne Collins, the writer of the “Hunger Games” that are set in a post-apocalyptic world ran by a tyrant.

She didn’t intend to create Dove in her persona.

“People say they see similarities,” she said. “I didn’t mean to do that.”

The idea came from her mother, who collects rocks as a hobby, McDole said.

“The Forgotten Key” took two and a half years to write, she said.

“I wanted it to be perfect,” said McDole, who has eight siblings.

The book was released on Wednesday at a launch party at the Belpre Branch of the Washington County Public Library.

“The Forgotten Key” is available on Amazon.com for $8.75 and $2.99 for the Kindle Version. It is 202 pages.