Tunnels #5: Spiral by Roderick Gordon (Paperback / softback, 2013)

Just when you thought it couldn't get any deeper, darker, or weirder...

Creeping into the open through cracks in the earth, the Styx have surfaced, and are w infesting England like some parasitic scourge -- carriers of a bizarre black secret that will place every last Topsoiler in mortal peril.

Unless Will Burrows puts a stop to the propagation.

Armed to the teeth, with little more than a motley crew of former commandos as reinforcements, can Will, Chester, and Elliott find a way to squash the threat? Or will they only find themselves in a deadly downward SPIRAL?

Now in paperback, the fifth book in the internationally bestselling TUNNELS series. Includes a sneak peek at TERMINAL, the final book in the series!