First published in the United Kingdom in 2018 by David Fickling Books.
Summary
"Floyd is a teenage tennis prodigy. Since he was little, all he's ever known is the routine of training, of matches, of working hard to rise to the top. But something strange is happening. Floyd is being followed by a boy whom no one else can see. And Mike will go to all lengths to make himself heard. Floyd will discover that finding out what Mike wants will change the course of his entire life. A thought-provoking journey of self-discovery. Mike examines what it means to break free and find your own path. Even if it means throwing away the plans of a lifetime"-- Publisher's description.