The Highfield Mole
Pages: 344
Publisher: Mathew & Son Limited (17 March 2005)
ISBN: 0954839919

Tunnels
Pages: 464
Publisher: Chicken House Ltd (3 July 2007)
ISBN: 978-1905294428

Deeper
Pages: 659
Publisher: Chicken House Ltd (22 May 2008)
ISBN: 978-1905294626

Freefall
Pages: 579
Publisher: Chicken House Ltd (18 May 2009)
ISBN: 978-1906427054

Closer
Pages: 511
Publisher: Chicken House Ltd (3rd May 2010)
ISBN: 978-1906427351