I have no secrets
(Book)

"Originally published in 2017 in Great Britain by Electric Monkey, an imprint of Egmont UK, Ltd."

Sixteen-year-old Jemma, who has severe cerebral palsy, must grapple with dark truths that only she knows, and is unable to communicate.

Jemma knows who the murderer is-- because he told her. He thought his secret was safe because her severe cerebral palsy won't let her speak or move. When a new technology means she may be able to communicate and reveal all she knows, Jemma no longer feels powerless. But now she's in a race against time. The killer will act again-- to stop her from telling what she knows. -- adapted from jacket and perusal of book