Deep Fire Rising (Philip Mercer)

USA Today bestselling author Jack Du Brul brings back geologist-adventurer Philip Mercer for an apocalyptic adventure. 
 
Hired to lead the excavation of caverns deep beneath Area 51, Philip Mercer finds himself drilling straight into the epicenter of an age-old conspiracy. A reclusive order of Himalayan monks, through special knowledge of the earth’s tectonic movement, has predicted the end of the world—and it is determined to see the prediction unfold accordingly.
 
Now, with icebergs floating through the South Pacific and a thermonuclear bomb set to destroy an island paradise, the stage is set for Armageddon—and it is up to Philip Mercer and the beautiful, mysterious Tisa Nguyan to prevent a cataclysm beyond imagination.