Two survivors of the school shooting in Parkland, Fl., have sold a book to Random House. #NeverAgain: A New Generation Draws the Line will be published by on June 5.

The authors of the book are David Hogg, 17, and his sister, Lauren, 14. The two were in their Florida school on February 14, when a gunman entered and ultimately killed 17 people. In the wake of the shooting, which is the third deadliest school shooting in the nation's history, the siblings joined the #NeverAgain movement. (The movement calls for stricter gun laws and, ultimately, aims to end mass shootings in the U.S.)

The Hoggs' book, Random House said, is a manifesto that is "speaking truth to power" and shows how the Parkland survivors "are determined to succeed where their elders have failed."

Random House's v-p and executive editor Mark Warren bought world rights to the book from David Granger at Aevitas Creative Management. The publisher approached fellow MSD High School student Emma González to write the foreword for #NeverAgain, but she was unavailable to do so.

The Hogg family will be donating proceeds from the book to charity and local community organizations. Random House will also donate some proceeds from the book, in the Hoggs' name, to Everytown for Gun Safety.

Correction: An earlier version of this story reported that Emma González was writing the foreword for the book. The story also mistakenly reported that the Parkland school shooting was the deadliest school massacre in U.S. history.