Roderick Gordon and Brian Williams' New York Times best-selling series that began with Tunnels has captivated countless readers of all ages. This fourth adventure finds Will Burrows deep in the "land of the second sun," reunited with his long-lost father. While Will attempts to decode the cryptic messages scrawled across the land's three mysterious temples, an army of darkness begins its march. And all the while the Rebecca’s continue their relentless...

In Spiral, horror spreads across England in the form of the Styx, malevolent creatures carrying a dark secret that could spell doom for all Topsoilers. All is not lost, however. Will Burrows and a small band of former commandos vow to stomp out the threat-even if it means placing their lives in mortal danger.