Book 1

Axel

by Harper Sloan

Published 7 July 2013

Book 2

Cage

by Harper Sloan

Published 8 September 2013

Book 3

Beck

by Harper Sloan

Published 27 December 2013

Book 3.5

Uncaged

by Harper Sloan

Published 7 March 2014

Book 4

Cooper

by Harper Sloan

Published 21 June 2014

Book 5

Locke

by Harper Sloan

Published 24 September 2014