Cassidy Stay stands with her grandfather Roger Lyon (L) as she addresses the crowd during a memorial service
Texas Shooting survivor, Cassidy Stay stands with her grandfather as she addresses the crowd during a memorial service.Reuters

A 15-year-old survivor of a shooting massacre in Texas received a handwritten letter from Harry Potter author JK Rowling.

JK Rowling sent a handwritten note in purple ink, written in the voice of Albus Dumbledore, from her Harry Potter series, to the Texas shooting survivor Cassidy Stay, reported The Telegraph.

Cassidy Stay lost her parents and four siblings to gun violence in Texas last month, surviving a gunshot wound. At a memorial event, Stay quoted a phrase of Dumbledore from the Harry Potter and the Prisoner of Azkaban.

J.K. Rowling, author of Harry Potter,
JK Rowling sent a handwritten note in the voice of Albus Dumbledore, from her Harry Potter series, to the Texas shooting survivor Cassidy StayREUTERS

"In 'The Prisoner of Azkaban,' Dumbledore says: 'Happiness can be found even in the darkest of times if one only remembers to turn on the light," she said.

Rowling heard about the quote via Facebook, thanks to an internet campaign. Rowling sent her the letter written in purple ink, a wand, an acceptance letter and school supply list for Hogwarts, and a signed copy of The Prisoner of Azkaban.

A spokesman for Rowling told The Telegraph that "the contents of the letter remain private," and did not confirm if the wizard series writer would meet Stay.

Stay tragically lost her family after her aunt's former husband went on a shooting rampage at the family home. She survived by pretending to be dead.

The brave girl alerted the police in time and saved the lives of several others as the gunman made his way to another home looking for victims.