Spiral, the fifth instalment in the Tunnels series, was released in the UK on 1st September 2011, publication in the US to follow in spring 2012. Thereafter there be will one more book to conclude the series. The Tunnels books feature Will and his friends' continuing fight against a terrifying and brutal subterranean race called the Styx, who want to take control of the surface. If you thought you were safe, you'd better think again.

A movie of the first book is currently being developed by Relativity Media in the US. News of how it's progressing will eventually be posted here.

And Tunnels, Deeper, Freefall, Closer and Spiral can be purchased here:

Puchase Tunnels via Amazon.com Purchase Tunnels via Amazon.co.uk