Hell Holes Series by Donald Firesmith

[]It’s August in Alaska, and geology professor Jack Oswald prepares for the new school year. But when hundreds of huge holes mysteriously appear overnight in the frozen tundra north of the Arctic Circle, Jack receives an unexpected phone call. An oil company exec hires Jack to investigate, and he picks his climatologist wife and two of their graduate students as his team... more[]It’s August in Alaska, and geology professor Jack Oswald prepares for the new school year. But when hundreds of huge holes mysteriously appear overnight in the frozen tundra north of the Arctic Circle, Jack receives an unexpected phone call. An oil company exec hires Jack to investigate, and he picks his climatologist wife and two of their graduate students as his team. Uncharacteristically, Jack also lets Aileen O’Shannon, a bewitchingly beautiful young photojournalist, talk him into coming along as their photographer. When they arrive in the remote oil town of Deadhorse, the exec and a biologist to protect them from wild animals join the team. Their task: to assess the risk of more holes opening under the Trans-Alaska Pipeline and the wells and pipelines that feed it. But they discover a far worse danger lurks below. When it emerges, it threatens to shatter Jack’s unshakable faith in science. And destroy us all… less

When hundreds of huge holes mysteriously appeared overnight in the frozen tundra north of the Arctic Circle, geologist Jack Oswald picked Angele Menendez, his climatologist wife, to determine if the record temperatures due to climate change was the cause. But the holes were not natural. They were unnatural portals for an invading army of demons... moreWhen hundreds of huge holes mysteriously appeared overnight in the frozen tundra north of the Arctic Circle, geologist Jack Oswald picked Angele Menendez, his climatologist wife, to determine if the record temperatures due to climate change was the cause. But the holes were not natural. They were unnatural portals for an invading army of demons. Together with Aileen O’Shannon, a 1,400-year-old sorceress demon-hunter, the three survivors of the research team sent to study the holes had only one chance: to flee down the dangerous Dalton Highway towards the relative safety of Fairbanks. However, the advancing horde of devils, imps, hellhounds, and gargoyles will stop at nothing to prevent their prey from escaping. It is a 350-mile race with simple rules. Win and live; lose and die… less