After escaping their troubles at home, Alvin and Jenna believed they were safe. They hadn't counted on the return of Zach, ex-school bully turned murderer and his caveman army.
Forced through the tunnel they find themselves back on Dartmoor - except that this is definitely not the 21st century. Struggling to understand the mysteries of the tunnel will they ever return to a safe time and place? Alvin failed to keep Miss Tregarthur's promise. Now reaching across time, it seems Miss Tregarthur will have her revenge.
"A violent heat came from the tunnel walls."
"I heard Jack shriek as...
After escaping their troubles at home, Alvin and Jenna believed they were safe. They hadn't counted on the return of Zach, ex-school bully turned murd...
