Book 1

Hold On!

by Peter Darley

Published 16 February 2016

Book 2

Go! - Hold On! Season 2

by Peter Darley

Published 17 March 2016

Book 3

Run! - Hold On! Season 3

by Peter Darley

Published 20 April 2016

Book 4

Hold On! - Tomorrow

by Peter Darley

Published 16 November 2016