When Abner Perry invents a vehicle that essentially drills through the earth, he takes it to his good friend (and independently wealthy man about town) David Ennis. And what else can they do? Drill down into the earth, of course. What they find there isn't what we'd expect: it's an inner world called Pellicidar, a ...
The first message sent to Tom Thorne's phone was just a picture - the blurred image of a man's face, but Thorne had seen enough dead bodies to know that the man was no longer alive. But who was he? Who sent the photograph? And why? While the technical experts attempt to trace the sender, Thorne searches the bulletins for a reported death that matches the photograph. Then another picture arrives.